1
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Schöpfer G, Bergmeister S, Ončák M, Stromberg I, Mahmoodi-Darian M, Scheier P, Echt O, Gruber E. Doubly charged dimers and trimers of heavy noble gases. Phys Chem Chem Phys 2024; 26:11482-11490. [PMID: 38533827 PMCID: PMC11022278 DOI: 10.1039/d4cp00465e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/21/2024] [Indexed: 03/28/2024]
Abstract
Many doubly charged heteronuclear dimers are metastable or even thermodynamically stable with respect to charge separation. Homonuclear dicationic dimers, however, are more difficult to form. He22+ was the first noble gas dimer predicted to be metastable and, decades later, observed. Ne22+ is the only other dicationic noble gas dimer that has been detected so far. Here, we present a novel approach to form fragile dicationic species, by post-ionization of singly charged ions that are embedded in helium nanodroplets (HNDs). Bare ions are then extracted by colliding the HNDs with helium gas. We detect homonuclear doubly charged dimers and trimers of krypton and xenon, but not argon. Our multi-reference ab initio calculations confirm the stability of Kr22+, Kr32+, Xe22+, Xe32+, and Ar22+, but put the stability of Ar32+ towards dissociation to Ar+ + Ar2+ into question.
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Affiliation(s)
- Gabriel Schöpfer
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria.
| | - Stefan Bergmeister
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria.
| | - Milan Ončák
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria.
| | - Ianessa Stromberg
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria.
- School of Chemistry, University of Edinburgh, Edinburgh, UK
| | | | - Paul Scheier
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria.
| | - Olof Echt
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria.
- Department of Physics, University of New Hampshire, Durham, USA
| | - Elisabeth Gruber
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Innsbruck, Austria.
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2
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Rana M, Ghosh A. Full Dynamical and Ab Initio Investigation of the Electron Transfer-Mediated Decay Mechanism of He + in the Presence of Heavier Alkali Dimers. J Phys Chem A 2024; 128:1973-1983. [PMID: 38447163 DOI: 10.1021/acs.jpca.3c07115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
We have studied the electron transfer-mediated decay (ETMD) process for the 1s ionized state of the He atom in the presence of a heavier alkali homonuclear dimer (Na2, K2, and Rb2) as well as heteronuclear dimer (LiNa, NaK, and KRb). In our computation, we have considered all the alkali dimers being in the singlet electronic ground state. The electron transfer from the alkali dimer to He (1s-1) leads to the emission of another electron from the alkali dimer into the continuum. We have investigated the impact of the distance of the He atom from the center of mass of the alkali dimer on the ETMD decay width. We also performed the Born-Oppenheimer molecular dynamics simulation to understand the impact of nuclear dynamics on the ETMD process.
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Affiliation(s)
- Meenakshi Rana
- Department of Chemistry, Ashoka University, Sonipat, Haryana 131029, India
| | - Aryya Ghosh
- Department of Chemistry, Ashoka University, Sonipat, Haryana 131029, India
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3
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Gopakumar G, Unger I, Slavíček P, Hergenhahn U, Öhrwall G, Malerz S, Céolin D, Trinter F, Winter B, Wilkinson I, Caleman C, Muchová E, Björneholm O. Radiation damage by extensive local water ionization from two-step electron-transfer-mediated decay of solvated ions. Nat Chem 2023; 15:1408-1414. [PMID: 37620544 PMCID: PMC10533389 DOI: 10.1038/s41557-023-01302-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 07/21/2023] [Indexed: 08/26/2023]
Abstract
Biomolecular radiation damage is largely mediated by radicals and low-energy electrons formed by water ionization rather than by direct ionization of biomolecules. It was speculated that such an extensive, localized water ionization can be caused by ultrafast processes following excitation by core-level ionization of hydrated metal ions. In this model, ions relax via a cascade of local Auger-Meitner and, importantly, non-local charge- and energy-transfer processes involving the water environment. Here, we experimentally and theoretically show that, for solvated paradigmatic intermediate-mass Al3+ ions, electronic relaxation involves two sequential solute-solvent electron transfer-mediated decay processes. The electron transfer-mediated decay steps correspond to sequential relaxation from Al5+ to Al3+ accompanied by formation of four ionized water molecules and two low-energy electrons. Such charge multiplication and the generated highly reactive species are expected to initiate cascades of radical reactions.
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Affiliation(s)
- G Gopakumar
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
| | - I Unger
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
- FS-BIG, DESY, Hamburg, Germany
| | - P Slavíček
- Department of Physical Chemistry, University of Chemistry and Technology, Prague, Czech Republic
| | - U Hergenhahn
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany
| | - G Öhrwall
- MAX IV Laboratory, Lund University, Lund, Sweden
| | - S Malerz
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany
| | - D Céolin
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, Paris, France
| | - F Trinter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany
- Institut für Kernphysik, Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany
| | - B Winter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany
| | - I Wilkinson
- Institute for Electronic Structure Dynamics, Helmholtz-Zentrum Berlin für Materialien und Energie, Berlin, Germany
| | - C Caleman
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
- Center for Free-Electron Laser Science, DESY, Hamburg, Germany
| | - E Muchová
- Department of Physical Chemistry, University of Chemistry and Technology, Prague, Czech Republic.
| | - O Björneholm
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.
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4
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Han M, Fedyk J, Ji JB, Despré V, Kuleff AI, Wörner HJ. Observation of Nuclear Wave-Packet Interference in Ultrafast Interatomic Energy Transfer. PHYSICAL REVIEW LETTERS 2023; 130:253202. [PMID: 37418708 DOI: 10.1103/physrevlett.130.253202] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/30/2023] [Indexed: 07/09/2023]
Abstract
We report the experimental observation of quantum interference in the nuclear wave-packet dynamics driving ultrafast excitation-energy transfer in argon dimers below the threshold of interatomic Coulombic decay (ICD). Using time-resolved photoion-photoion coincidence spectroscopy and quantum dynamics simulations, we reveal that the electronic relaxation dynamics of the inner-valence 3s hole on one atom leading to a 4s or 4p excitation on the other one is influenced by nuclear quantum dynamics in the initial state, giving rise to a deep, periodic modulation on the kinetic-energy-release (KER) spectra of the coincident Ar^{+}-Ar^{+} ion pairs. Moreover, the time-resolved KER spectra show characteristic fingerprints of quantum interference effects during the energy-transfer process. Our findings pave the way to elucidating quantum-interference effects in ultrafast charge- and energy-transfer dynamics in more complex systems, such as molecular clusters and solvated molecules.
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Affiliation(s)
- Meng Han
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093 Zürich, Switzerland
| | - Jacqueline Fedyk
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, 69120 Heidelberg, Germany
| | - Jia-Bao Ji
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093 Zürich, Switzerland
| | - Victor Despré
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, 69120 Heidelberg, Germany
- Institut Lumière Matière, UMR5306-UCBL and CNRS, 69622 Villeurbanne, France
| | - Alexander I Kuleff
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, 69120 Heidelberg, Germany
| | - Hans Jakob Wörner
- Laboratorium für Physikalische Chemie, ETH Zürich, 8093 Zürich, Switzerland
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5
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Schäfer JL, Langkabel F, Bande A. Three-Electron Dynamics of the Interparticle Coulombic Decay in Doubly Excited Clusters with One-Dimensional Continuum Confinement. Molecules 2022; 27:8713. [PMID: 36557847 PMCID: PMC9784222 DOI: 10.3390/molecules27248713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
A detailed analysis of the electronic structure and decay dynamics in a symmetric system with three electrons in three linearly aligned binding sites representing quantum dots (QDs) is given. The two outer A QDs are two-level potentials and can act as (virtual) photon emitters, whereas the central B QD can be ionized from its one level into a continuum confined on the QD axis upon absorbing virtual photons in the inter-Coulombic decay (ICD) process. Two scenarios in such an ABA array are explored. One ICD process is from a singly excited resonance state, whose decay releasing one virtual photon we find superimposed with resonance energy transfer among both A QDs. Moreover, the decay-process manifold for a doubly excited (DE) resonance is explored, in which collective ICD among all three sites and excited ICD among the outer QDs engage. Rates for all processes are found to be extremely low, although ICD rates with two neighbors are predicted to double compared to ICD among two sites only. The slowing is caused by Coulomb barriers imposed from ground or excited state electrons in the A sites. Outliers occur on the one hand at short distances, where the charge transfer among QDs mixes the possible decay pathways. On the other hand, we discovered a shape resonance-enhanced DE-ICD pathway, in which an excited and localized B* shape resonance state forms, which is able to decay quickly into the final ICD continuum.
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Affiliation(s)
- Joana-Lysiane Schäfer
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Fabian Langkabel
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Annika Bande
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
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6
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Zhou J, Belina M, Jia S, Xue X, Hao X, Ren X, Slavíček P. Ultrafast Charge and Proton Transfer in Doubly Ionized Ammonia Dimers. J Phys Chem Lett 2022; 13:10603-10611. [PMID: 36350084 DOI: 10.1021/acs.jpclett.2c02560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
We investigate the ultrafast energy and charge transfer processes between ammonia molecules following ionization reactions initiated by electron impact. Exploring ionization-induced processes in molecular clusters provides us with a detailed insight into the dynamics using experiments in the energy domain. We ionize the ammonia dimer with 200 eV electrons and apply the fragment ions coincident momentum spectroscopy and nonadiabatic molecular dynamics simulations. We identify two mechanisms leading to the doubly charged ammonia dimer. In the first one, a single molecule is ionized. This initiates an ultrafast proton transfer process, leading to the formation of the NH2+ + NH4+ pair. Alternatively, a dimer with a delocalized charge is formed dominantly via the intermolecular Coulombic decay, forming the NH3+·NH3+ dication. This dication further dissociates into two NH3+ cations. The ab initio calculations have reproduced the measured kinetic energy release of the ion pairs and revealed the dynamical processes following the double ionization.
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Affiliation(s)
- Jiaqi Zhou
- School of Physics, Xi'an Jiaotong University, Xi'an710049, China
| | - Michal Belina
- Department of Physical Chemistry, University of Chemistry and Technology,Technická 5, 16628Prague 6, Czech Republic
| | - Shaokui Jia
- School of Physics, Xi'an Jiaotong University, Xi'an710049, China
| | - Xiaorui Xue
- School of Physics, Xi'an Jiaotong University, Xi'an710049, China
| | - Xintai Hao
- School of Physics, Xi'an Jiaotong University, Xi'an710049, China
| | - Xueguang Ren
- School of Physics, Xi'an Jiaotong University, Xi'an710049, China
| | - Petr Slavíček
- Department of Physical Chemistry, University of Chemistry and Technology,Technická 5, 16628Prague 6, Czech Republic
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7
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Ben-Asher A, Landau A, Moiseyev N. Uniform vs Partial Scaling within Resonances via Padé Based on the Similarities to Other Non-Hermitian Methods: Illustration for the Beryllium 1 s22 p3 s State. J Chem Theory Comput 2021; 17:3435-3444. [PMID: 33945263 DOI: 10.1021/acs.jctc.1c00223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Resonance via Padé (RVP) is an efficient method for calculating autoionization resonance states. It is based on the stabilization technique in which the basis set is scaled. The scaling can be uniform (i.e., all basis functions are scaled) or partial. Herein, we compare the two RVP scaling schemes for calculating an autoionization eigenvalue; moreover, the effect of freezing the core electrons is intertwined within this comparison. In order to study the different behavior of the RVP schemes, we associate each RVP scaling scheme with a complex contour of integration. Similarities between RVP and other non-Hermitian methods emerge from the generated contours, which suggest that RVP introduces similar outgoing boundary conditions as the complex scaling (CS), complex basis function (CBF), and reflection-free complex absorbing potential (RF-CAP) methods. A uniform-RVP contour, unlike a partial one, immediately penetrates the complex plane and influences the interaction region. Hence, uniform scaling within RVP destroys the description of the core electrons, as well as the description of the reference state, and yields less reliable results than partial scaling. The 1s22p3s 1P autoionization state of Be, at the equation-of-motion coupled-cluster level, is used as our case study model.
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Affiliation(s)
- Anael Ben-Asher
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Arie Landau
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Nimrod Moiseyev
- Schulich Faculty of Chemistry, Department of Physics and Russell-Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 32000, Israel
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8
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Jahnke T, Hergenhahn U, Winter B, Dörner R, Frühling U, Demekhin PV, Gokhberg K, Cederbaum LS, Ehresmann A, Knie A, Dreuw A. Interatomic and Intermolecular Coulombic Decay. Chem Rev 2020; 120:11295-11369. [PMID: 33035051 PMCID: PMC7596762 DOI: 10.1021/acs.chemrev.0c00106] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Indexed: 12/11/2022]
Abstract
Interatomic or intermolecular Coulombic decay (ICD) is a nonlocal electronic decay mechanism occurring in weakly bound matter. In an ICD process, energy released by electronic relaxation of an excited atom or molecule leads to ionization of a neighboring one via Coulombic electron interactions. ICD has been predicted theoretically in the mid nineties of the last century, and its existence has been confirmed experimentally approximately ten years later. Since then, a number of fundamental and applied aspects have been studied in this quickly growing field of research. This review provides an introduction to ICD and draws the connection to related energy transfer and ionization processes. The theoretical approaches for the description of ICD as well as the experimental techniques developed and employed for its investigation are described. The existing body of literature on experimental and theoretical studies of ICD processes in different atomic and molecular systems is reviewed.
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Affiliation(s)
- Till Jahnke
- Institut
für Kernphysik, Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - Uwe Hergenhahn
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
- Max
Planck Institute for Plasma Physics, Wendelsteinstr. 1, 17491 Greifswald, Germany
- Leibniz
Institute of Surface Engineering (IOM), 04318 Leipzig, Germany
| | - Bernd Winter
- Fritz-Haber-Institut
der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Reinhard Dörner
- Institut
für Kernphysik, Goethe Universität, Max-von-Laue-Str. 1, 60438 Frankfurt, Germany
| | - Ulrike Frühling
- Institut
für Experimentalphysik and Center for Ultrafast Imaging, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Philipp V. Demekhin
- Institut
für Physik und CINSaT, Universität
Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
| | - Kirill Gokhberg
- Physical-Chemistry
Institute, Ruprecht-Karls University, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - Lorenz S. Cederbaum
- Physical-Chemistry
Institute, Ruprecht-Karls University, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - Arno Ehresmann
- Institut
für Physik und CINSaT, Universität
Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
| | - André Knie
- Institut
für Physik und CINSaT, Universität
Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
| | - Andreas Dreuw
- Interdisciplinary
Center for Scientific Computing, Ruprecht-Karls
University, Im Neuenheimer
Feld 205, 69120 Heidelberg, Germany
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9
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Ben-Asher A, Landau A, Cederbaum LS, Moiseyev N. Quantum Effects Dominating the Interatomic Coulombic Decay of an Extreme System. J Phys Chem Lett 2020; 11:6600-6605. [PMID: 32706968 DOI: 10.1021/acs.jpclett.0c01974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
LiHe is an extreme open-shell system. It is among the weakest bound systems known, and its mean interatomic distance extends dramatically into the classical forbidden region. Upon 1s → 2p excitation of He, interatomic Coulombic decay (ICD) takes place in which the electronically excited helium atom relaxes and transfers its excess energy to ionize the neighboring lithium atom. A substantial part of the decay is found to be to the dissociation continuum producing Li+ and He atoms. The distribution of the kinetic energy released by the ICD products is found to be highly oscillatory. Its analysis reveals that quantum phase shifts between the decaying states and the dissociating final states are controlling this ICD reaction. The semiclassical reflection principle, which commonly explains ICD reactions, fails. The process is expected to be amenable to experiment.
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Affiliation(s)
- Anael Ben-Asher
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Arie Landau
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, Heidelberg D-69120, Germany
| | - Lorenz S Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, Heidelberg D-69120, Germany
| | - Nimrod Moiseyev
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
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10
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Obaid R, Xiong H, Augustin S, Schnorr K, Ablikim U, Battistoni A, Wolf TJA, Bilodeau RC, Osipov T, Gokhberg K, Rolles D, LaForge AC, Berrah N. Intermolecular Coulombic Decay in Endohedral Fullerene at the 4d→4f Resonance. PHYSICAL REVIEW LETTERS 2020; 124:113002. [PMID: 32242685 DOI: 10.1103/physrevlett.124.113002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 02/08/2020] [Indexed: 06/11/2023]
Abstract
Intermolecular processes offer unique decay mechanisms for complex systems to internally relax. Here, we report the observation of an intermolecular Coulombic decay channel in an endohedral fullerene, a holmium nitride complex (Ho_{3}N) embedded within a C_{80} fullerene, between neighboring holmium ions, and between the holmium complex and the carbon cage. By measuring the ions and the electrons in coincidence after XUV photoabsorption, we can isolate the different decay channels, which are found to be more prevalent relative to intra-atomic Auger decay.
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Affiliation(s)
- Razib Obaid
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Hui Xiong
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Sven Augustin
- Max-Planck-Institut für Kernphysik, Heidelberg 69117, Germany
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Kirsten Schnorr
- Max-Planck-Institut für Kernphysik, Heidelberg 69117, Germany
| | - Utuq Ablikim
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Andrea Battistoni
- PULSE Institute, SLAC National Accelerator Laboratory, 2575, Sand Hill Road, Menlo Park, California 94025, USA
| | - Thomas J A Wolf
- PULSE Institute, SLAC National Accelerator Laboratory, 2575, Sand Hill Road, Menlo Park, California 94025, USA
| | - René C Bilodeau
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Timur Osipov
- LCLS, SLAC National Accelerator Laboratory, 2575, Sand Hill Road, Menlo Park, California 94025, USA
| | - Kirill Gokhberg
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Heidelberg 69120, Germany
| | - Daniel Rolles
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506, USA
| | - Aaron C LaForge
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Nora Berrah
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
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11
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Milosavljević AR, Jänkälä K, Ranković ML, Canon F, Bozek J, Nicolas C, Giuliani A. Oxygen K-shell spectroscopy of isolated progressively solvated peptide. Phys Chem Chem Phys 2020; 22:12909-12917. [DOI: 10.1039/d0cp00994f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
X-ray spectroscopy of an isolated controllably hydrated peptide: core excitation of the first solvation shell enhances peptide backbone fragmentation.
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Affiliation(s)
| | - Kari Jänkälä
- Nano and Molecular Systems Research Unit
- University of Oulu
- 90014 Oulu
- Finland
| | | | - Francis Canon
- Centre des Sciences du Goût et de l’Alimentation
- CNRS
- INRAE
- Université de Bourgogne Franche-Comté
- France
| | - John Bozek
- SOLEIL, l’Orme des Merisiers
- 91192 Gif sur Yvette Cedex
- France
| | | | - Alexandre Giuliani
- SOLEIL, l’Orme des Merisiers
- 91192 Gif sur Yvette Cedex
- France
- INRAE
- UAR1008
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12
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Schmid G, Schnorr K, Augustin S, Meister S, Lindenblatt H, Trost F, Liu Y, Miteva T, Gisselbrecht M, Düsterer S, Redlin H, Treusch R, Gokhberg K, Kuleff AI, Cederbaum LS, Schröter CD, Pfeifer T, Moshammer R. Tracing charge transfer in argon dimers by XUV-pump IR-probe experiments at FLASH. J Chem Phys 2019; 151:084314. [PMID: 31470702 DOI: 10.1063/1.5116234] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Charge transfer (CT) at avoided crossings of excited ionized states of argon dimers is observed using a two-color pump-probe experiment at the free-electron laser in Hamburg (FLASH). The process is initiated by the absorption of three 27-eV-photons from the pump pulse, which leads to the population of Ar2+*-Ar states. Due to nonadiabatic coupling between these one-site doubly ionized states and two-site doubly ionized states of the type Ar+*-Ar+, CT can take place leading to the population of the latter states. The onset of this process is probed by a delayed infrared (800 nm) laser pulse. The latter ionizes the dimers populating repulsive Ar2+ -Ar+ states, which then undergo a Coulomb explosion. From the delay-dependent yields of the obtained Ar2+ and Ar+ ions, the lifetime of the charge-transfer process is extracted. The obtained experimental value of (531 ± 136) fs agrees well with the theoretical value computed from Landau-Zener probabilities.
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Affiliation(s)
- Georg Schmid
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Kirsten Schnorr
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Sven Augustin
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Severin Meister
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Hannes Lindenblatt
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Florian Trost
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Yifan Liu
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Tsveta Miteva
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | | | - Stefan Düsterer
- Deutsches Elektronen-Synchrotron, Notkestraße 85, 22607 Hamburg, Germany
| | - Harald Redlin
- Deutsches Elektronen-Synchrotron, Notkestraße 85, 22607 Hamburg, Germany
| | - Rolf Treusch
- Deutsches Elektronen-Synchrotron, Notkestraße 85, 22607 Hamburg, Germany
| | - Kirill Gokhberg
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - Alexander I Kuleff
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | - Lorenz S Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany
| | | | - Thomas Pfeifer
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Robert Moshammer
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
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13
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Goldzak T. Partial widths and branching ratios for the emitted electron resulting from interatomic Coulombic decay in quantum wells heterostructure. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1618507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Tamar Goldzak
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, USA
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14
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Real-time observation of X-ray-induced intramolecular and interatomic electronic decay in CH 2I 2. Nat Commun 2019; 10:2186. [PMID: 31097703 PMCID: PMC6522627 DOI: 10.1038/s41467-019-10060-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 04/16/2019] [Indexed: 11/08/2022] Open
Abstract
The increasing availability of X-ray free-electron lasers (XFELs) has catalyzed the development of single-object structural determination and of structural dynamics tracking in real-time. Disentangling the molecular-level reactions triggered by the interaction with an XFEL pulse is a fundamental step towards developing such applications. Here we report real-time observations of XFEL-induced electronic decay via short-lived transient electronic states in the diiodomethane molecule, using a femtosecond near-infrared probe laser. We determine the lifetimes of the transient states populated during the XFEL-induced Auger cascades and find that multiply charged iodine ions are issued from short-lived (∼20 fs) transient states, whereas the singly charged ones originate from significantly longer-lived states (∼100 fs). We identify the mechanisms behind these different time scales: contrary to the short-lived transient states which relax by molecular Auger decay, the long-lived ones decay by an interatomic Coulombic decay between two iodine atoms, during the molecular fragmentation. Understanding strong X-ray induced phenomena is important for applications of X-ray free-electron laser imaging. Here, the authors show time-resolved measurements of X-ray free-electron laser induced electronic decay of CH2I2 molecule probed with NIR pulses and identify mechanisms behind different transient states lifetimes.
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15
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Xu S, Guo D, Ma X, Zhu X, Feng W, Yan S, Zhao D, Gao Y, Zhang S, Ren X, Zhao Y, Xu Z, Dorn A, Cederbaum LS, Kryzhevoi NV. Damaging Intermolecular Energy and Proton Transfer Processes in Alpha-Particle-Irradiated Hydrogen-Bonded Systems. Angew Chem Int Ed Engl 2018; 57:17023-17027. [PMID: 30417968 DOI: 10.1002/anie.201808898] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/12/2018] [Indexed: 11/11/2022]
Abstract
Although the biological hazard of alpha-particle radiation is well-recognized, the molecular mechanisms of biodamage are still far from being understood. Irreparable lesions in biomolecules may not only have mechanical origin but also appear due to various electronic and nuclear relaxation processes of ionized states produced by an alpha-particle impact. Two such processes were identified in the present study by considering an acetylene dimer, a biologically relevant system possessing an intermolecular hydrogen bond. The first process is the already well-established intermolecular Coulombic decay of inner-valence-ionized states. The other is a novel relaxation mechanism of dicationic states involving intermolecular proton transfer. Both processes are very fast and trigger Coulomb explosion of the dimer due to creation of charge-separated states. These processes are general and predicted to occur also in alpha-particle-irradiated nucleobase pairs in DNA molecules.
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Affiliation(s)
- Shenyue Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China.,School of Science, Xi'an Jiaotong University, Xianning West Road 28, Xi'an, 710049, China
| | - Dalong Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China
| | - Xinwen Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China
| | - Xiaolong Zhu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China
| | - Wentian Feng
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China
| | - Shuncheng Yan
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China
| | - Dongmei Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China
| | - Yong Gao
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China
| | - Shaofeng Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou, 730000, China
| | - Xueguang Ren
- School of Science, Xi'an Jiaotong University, Xianning West Road 28, Xi'an, 710049, China.,Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117, Heidelberg, Germany
| | - Yongtao Zhao
- School of Science, Xi'an Jiaotong University, Xianning West Road 28, Xi'an, 710049, China
| | - Zhongfeng Xu
- School of Science, Xi'an Jiaotong University, Xianning West Road 28, Xi'an, 710049, China
| | - Alexander Dorn
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117, Heidelberg, Germany
| | - Lorenz S Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120, Heidelberg, Germany
| | - Nikolai V Kryzhevoi
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120, Heidelberg, Germany
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16
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Xu S, Guo D, Ma X, Zhu X, Feng W, Yan S, Zhao D, Gao Y, Zhang S, Ren X, Zhao Y, Xu Z, Dorn A, Cederbaum LS, Kryzhevoi NV. Damaging Intermolecular Energy and Proton Transfer Processes in Alpha‐Particle‐Irradiated Hydrogen‐Bonded Systems. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shenyue Xu
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
- School of Science Xi'an Jiaotong University Xianning West Road 28 Xi'an 710049 China
| | - Dalong Guo
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
| | - Xinwen Ma
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
| | - Xiaolong Zhu
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
| | - Wentian Feng
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
| | - Shuncheng Yan
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
| | - Dongmei Zhao
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
| | - Yong Gao
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
| | - Shaofeng Zhang
- Institute of Modern Physics Chinese Academy of Sciences Nanchang Road 509 Lanzhou 730000 China
| | - Xueguang Ren
- School of Science Xi'an Jiaotong University Xianning West Road 28 Xi'an 710049 China
- Max-Planck-Institut für Kernphysik Saupfercheckweg 1 69117 Heidelberg Germany
| | - Yongtao Zhao
- School of Science Xi'an Jiaotong University Xianning West Road 28 Xi'an 710049 China
| | - Zhongfeng Xu
- School of Science Xi'an Jiaotong University Xianning West Road 28 Xi'an 710049 China
| | - Alexander Dorn
- Max-Planck-Institut für Kernphysik Saupfercheckweg 1 69117 Heidelberg Germany
| | - Lorenz S. Cederbaum
- Theoretische Chemie Physikalisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 229 69120 Heidelberg Germany
| | - Nikolai V. Kryzhevoi
- Theoretische Chemie Physikalisch-Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 229 69120 Heidelberg Germany
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17
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You D, Fukuzawa H, Sakakibara Y, Takanashi T, Ito Y, Maliyar GG, Motomura K, Nagaya K, Nishiyama T, Asa K, Sato Y, Saito N, Oura M, Schöffler M, Kastirke G, Hergenhahn U, Stumpf V, Gokhberg K, Kuleff AI, Cederbaum LS, Ueda K. Charge transfer to ground-state ions produces free electrons. Nat Commun 2017; 8:14277. [PMID: 28134238 PMCID: PMC5290264 DOI: 10.1038/ncomms14277] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 12/09/2016] [Indexed: 11/09/2022] Open
Abstract
Inner-shell ionization of an isolated atom typically leads to Auger decay. In an environment, for example, a liquid or a van der Waals bonded system, this process will be modified, and becomes part of a complex cascade of relaxation steps. Understanding these steps is important, as they determine the production of slow electrons and singly charged radicals, the most abundant products in radiation chemistry. In this communication, we present experimental evidence for a so-far unobserved, but potentially very important step in such relaxation cascades: Multiply charged ionic states after Auger decay may partially be neutralized by electron transfer, simultaneously evoking the creation of a low-energy free electron (electron transfer-mediated decay). This process is effective even after Auger decay into the dicationic ground state. In our experiment, we observe the decay of Ne2+ produced after Ne 1s photoionization in Ne-Kr mixed clusters.
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Affiliation(s)
- D You
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
| | - H Fukuzawa
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
| | - Y Sakakibara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
| | - T Takanashi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
| | - Y Ito
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
| | - G G Maliyar
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
| | - K Motomura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
| | - K Nagaya
- RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan.,Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Nishiyama
- RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan.,Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Asa
- RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan.,Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Sato
- RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan.,Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Saito
- RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan.,National Metrology Institute of Japan, AIST, Tsukuba 305-8568, Japan
| | - M Oura
- RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
| | - M Schöffler
- RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan.,Institute for Nuclear Physics, Johann Wolfgang Goethe University Frankfurt, Frankfurt 60438, Germany
| | - G Kastirke
- Institute for Nuclear Physics, Johann Wolfgang Goethe University Frankfurt, Frankfurt 60438, Germany
| | - U Hergenhahn
- Leibniz Institute of Surface Modification, Leipzig 04318, Germany.,Max-Planck-Institute for Plasma Physics, Greifswald 17491, Germany
| | - V Stumpf
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Heidelberg 69120, Germany
| | - K Gokhberg
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Heidelberg 69120, Germany
| | - A I Kuleff
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Heidelberg 69120, Germany
| | - L S Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Heidelberg 69120, Germany
| | - K Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan.,RIKEN SPring-8 Center, Kouto 1-1-1, Sayo, Hyogo 679-5148, Japan
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18
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19
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Stumpf V, Scheit S, Kolorenč P, Gokhberg K. Electron transfer mediated decay in NeXe triggered by K-LL Auger decay of Ne. Chem Phys 2017. [DOI: 10.1016/j.chemphys.2016.08.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Interatomic Coulombic decay and electron-transfer-mediated decay following triple ionization of Ne2 and NeAr. Chem Phys 2017. [DOI: 10.1016/j.chemphys.2016.09.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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22
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Fasshauer E, Förstel M, Mucke M, Arion T, Hergenhahn U. Theoretical and experimental investigation of Electron Transfer Mediated Decay in ArKr clusters. Chem Phys 2017. [DOI: 10.1016/j.chemphys.2016.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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A comprehensive study of Interatomic Coulombic Decay in argon dimers: Extracting R-dependent absolute decay rates from the experiment. Chem Phys 2017. [DOI: 10.1016/j.chemphys.2016.09.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Iablonskyi D, Nagaya K, Fukuzawa H, Motomura K, Kumagai Y, Mondal S, Tachibana T, Takanashi T, Nishiyama T, Matsunami K, Johnsson P, Piseri P, Sansone G, Dubrouil A, Reduzzi M, Carpeggiani P, Vozzi C, Devetta M, Negro M, Calegari F, Trabattoni A, Castrovilli MC, Faccialà D, Ovcharenko Y, Möller T, Mudrich M, Stienkemeier F, Coreno M, Alagia M, Schütte B, Berrah N, Kuleff AI, Jabbari G, Callegari C, Plekan O, Finetti P, Spezzani C, Ferrari E, Allaria E, Penco G, Serpico C, De Ninno G, Nikolov I, Diviacco B, Di Mitri S, Giannessi L, Prince KC, Ueda K. Slow Interatomic Coulombic Decay of Multiply Excited Neon Clusters. PHYSICAL REVIEW LETTERS 2016; 117:276806. [PMID: 28084773 DOI: 10.1103/physrevlett.117.276806] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Indexed: 06/06/2023]
Abstract
Ne clusters (∼5000 atoms) were resonantly excited (2p→3s) by intense free electron laser (FEL) radiation at FERMI. Such multiply excited clusters can decay nonradiatively via energy exchange between at least two neighboring excited atoms. Benefiting from the precise tunability and narrow bandwidth of seeded FEL radiation, specific sites of the Ne clusters were probed. We found that the relaxation of cluster surface atoms proceeds via a sequence of interatomic or intermolecular Coulombic decay (ICD) processes while ICD of bulk atoms is additionally affected by the surrounding excited medium via inelastic electron scattering. For both cases, cluster excitations relax to atomic states prior to ICD, showing that this kind of ICD is rather slow (picosecond range). Controlling the average number of excitations per cluster via the FEL intensity allows a coarse tuning of the ICD rate.
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Affiliation(s)
- D Iablonskyi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K Nagaya
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - H Fukuzawa
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K Motomura
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - Y Kumagai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - S Mondal
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Tachibana
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Takanashi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Nishiyama
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - K Matsunami
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - P Johnsson
- Department of Physics, Lund University, 22100 Lund, Sweden
| | - P Piseri
- Dipartimento di Fisica, Università degli Studi di Milano, 20133 Milano, Italy
| | - G Sansone
- CNR-IFN, 20133 Milan, Italy
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | | | | | | | | | | | | | - F Calegari
- CNR-IFN, 20133 Milan, Italy
- Center for Free-Electron Laser Science, DESY, 22607 Hamburg, Germany
| | - A Trabattoni
- CNR-IFN, 20133 Milan, Italy
- Center for Free-Electron Laser Science, DESY, 22607 Hamburg, Germany
| | | | - D Faccialà
- Dipartimento di Fisica, Politecnico di Milano, 20133 Milan, Italy
| | - Y Ovcharenko
- Institut für Optik und Atomare Physik, TU Berlin, 10623 Berlin, Germany
| | - T Möller
- Institut für Optik und Atomare Physik, TU Berlin, 10623 Berlin, Germany
| | - M Mudrich
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | - F Stienkemeier
- Physikalisches Institut, Universität Freiburg, 79104 Freiburg, Germany
| | - M Coreno
- CNR-ISM, Area Science Park, 34149 Trieste, Italy
| | - M Alagia
- CNR-IOM, Area Science Park, 34149 Trieste, Italy
| | - B Schütte
- Max-Born-Institut, 12489 Berlin, Germany
| | - N Berrah
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - A I Kuleff
- Theoretische Chemie, Universität Heidelberg, 69120 Heidelberg, Germany
| | - G Jabbari
- Theoretische Chemie, Universität Heidelberg, 69120 Heidelberg, Germany
| | - C Callegari
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - O Plekan
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - P Finetti
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - C Spezzani
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - E Ferrari
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - E Allaria
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - G Penco
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - C Serpico
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - G De Ninno
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
- Laboratory of Quantum Optics, University of Nova Gorica, 5001 Nova Gorica, Slovenia
| | - I Nikolov
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - B Diviacco
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - S Di Mitri
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - L Giannessi
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - K C Prince
- CNR-IOM, Area Science Park, 34149 Trieste, Italy
- Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - K Ueda
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
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25
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Nagaya K, Iablonskyi D, Golubev NV, Matsunami K, Fukuzawa H, Motomura K, Nishiyama T, Sakai T, Tachibana T, Mondal S, Wada S, Prince KC, Callegari C, Miron C, Saito N, Yabashi M, Demekhin PV, Cederbaum LS, Kuleff AI, Yao M, Ueda K. Interatomic Coulombic decay cascades in multiply excited neon clusters. Nat Commun 2016; 7:13477. [PMID: 27917867 PMCID: PMC5150215 DOI: 10.1038/ncomms13477] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 10/07/2016] [Indexed: 11/21/2022] Open
Abstract
In high-intensity laser light, matter can be ionized by direct multiphoton absorption even at photon energies below the ionization threshold. However on tuning the laser to the lowest resonant transition, the system becomes multiply excited, and more efficient, indirect ionization pathways become operative. These mechanisms are known as interatomic Coulombic decay (ICD), where one of the species de-excites to its ground state, transferring its energy to ionize another excited species. Here we show that on tuning to a higher resonant transition, a previously unknown type of interatomic Coulombic decay, intra-Rydberg ICD occurs. In it, de-excitation of an atom to a close-lying Rydberg state leads to electron emission from another neighbouring Rydberg atom. Moreover, systems multiply excited to higher Rydberg states will decay by a cascade of such processes, producing even more ions. The intra-Rydberg ICD and cascades are expected to be ubiquitous in weakly-bound systems exposed to high-intensity resonant radiation. Interatomic Coulombic decay (ICD) is a relaxation of an atom in a weakly bound environment by the transfer of excess energy to ionize the neighbouring atom. Here the authors observe intra-Rydberg ICD in neon clusters, which is a decay that involves the ionization of Rydberg atoms in the cluster.
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Affiliation(s)
- K Nagaya
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan.,RIKEN SPring-8 Center, 679-5148 Hyogo, Japan
| | - D Iablonskyi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - N V Golubev
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany
| | - K Matsunami
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - H Fukuzawa
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - K Motomura
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - T Nishiyama
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - T Sakai
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan
| | - T Tachibana
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - S Mondal
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
| | - S Wada
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,Department of Physical Science, Hiroshima University, 739-8526 Higashi-Hiroshima, Japan
| | - K C Prince
- Elettra-Sincrotrone Trieste, Basovizza, Trieste I-34149, Italy
| | - C Callegari
- Elettra-Sincrotrone Trieste, Basovizza, Trieste I-34149, Italy
| | - C Miron
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, FR-91192 Gif-sur-Yvette Cedex, France.,Extreme Light Infrastructure-Nuclear Physics (ELI-NP), 'Horia Hulubei' National Institute for Physics and Nuclear Engineering, RO-077125 Măgurele, Jud. Ilfov, Romania
| | - N Saito
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,National Metrology Institute of Japan, AIST, 305-8568 Tsukuba, Japan
| | - M Yabashi
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan
| | - Ph V Demekhin
- Theoretische Atom- und Molekülphysik, Institut für Physik und CINSaT, Universität Kassel, D-34132 Kassel, Germany
| | - L S Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany
| | - A I Kuleff
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany
| | - M Yao
- Department of Physics, Graduate School of Science, Kyoto University, 606-8502 Kyoto, Japan.,Deceased
| | - K Ueda
- RIKEN SPring-8 Center, 679-5148 Hyogo, Japan.,Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 980-8577 Sendai, Japan
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26
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Miteva T, Wenzel J, Klaiman S, Dreuw A, Gokhberg K. X-Ray absorption spectra of microsolvated metal cations. Phys Chem Chem Phys 2016; 18:16671-81. [DOI: 10.1039/c6cp02606k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Core excited states of microsolvated ions undergo substantial delocalisation whose degree strongly depends on the ion's charge.
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Affiliation(s)
- T. Miteva
- Theoretische Chemie
- Physikalisch-Chemisches Institut
- Universität Heidelberg
- D-69120 Heidelberg
- Germany
| | - J. Wenzel
- Interdisciplinary Center for Scientific Computing
- Ruprecht-Karls University
- D-69120 Heidelberg
- Germany
| | - S. Klaiman
- Theoretische Chemie
- Physikalisch-Chemisches Institut
- Universität Heidelberg
- D-69120 Heidelberg
- Germany
| | - A. Dreuw
- Interdisciplinary Center for Scientific Computing
- Ruprecht-Karls University
- D-69120 Heidelberg
- Germany
| | - K. Gokhberg
- Theoretische Chemie
- Physikalisch-Chemisches Institut
- Universität Heidelberg
- D-69120 Heidelberg
- Germany
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27
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Miteva T, Chiang YC, Kolorenč P, Kuleff AI, Cederbaum LS, Gokhberg K. The effect of the partner atom on the spectra of interatomic Coulombic decay triggered by resonant Auger processes. J Chem Phys 2014; 141:164303. [PMID: 25362295 DOI: 10.1063/1.4898154] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T. Miteva
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - Y.-C. Chiang
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - P. Kolorenč
- Institute of Theoretical Physics, Faculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, 180 00, Prague, Czech Republic
| | - A. I. Kuleff
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - L. S. Cederbaum
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - K. Gokhberg
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
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28
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Jabbari G, Klaiman S, Chiang YC, Trinter F, Jahnke T, Gokhberg K. Ab initio calculation of ICD widths in photoexcited HeNe. J Chem Phys 2014; 140:224305. [PMID: 24929386 DOI: 10.1063/1.4881598] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- G. Jabbari
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - S. Klaiman
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - Y.-C. Chiang
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
| | - F. Trinter
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, D-60438 Frankfurt, Germany
| | - T. Jahnke
- Institut für Kernphysik, Goethe-Universität Frankfurt, Max-von-Laue-Str. 1, D-60438 Frankfurt, Germany
| | - K. Gokhberg
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
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30
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Site- and energy-selective slow-electron production through intermolecular Coulombic decay. Nature 2013; 505:661-3. [DOI: 10.1038/nature12936] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Accepted: 11/28/2013] [Indexed: 11/08/2022]
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31
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Trinter F, Williams JB, Weller M, Waitz M, Pitzer M, Voigtsberger J, Schober C, Kastirke G, Müller C, Goihl C, Burzynski P, Wiegandt F, Bauer T, Wallauer R, Sann H, Kalinin A, Schmidt LPH, Schöffler M, Sisourat N, Jahnke T. Evolution of interatomic Coulombic decay in the time domain. PHYSICAL REVIEW LETTERS 2013; 111:093401. [PMID: 24033031 DOI: 10.1103/physrevlett.111.093401] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Indexed: 06/02/2023]
Abstract
During the past 15 years a novel decay mechanism of excited atoms has been discovered and investigated. This so-called interatomic Coulombic decay (ICD) involves the chemical environment of the electronically excited atom: the excitation energy is transferred (in many cases over long distances) to a neighbor of the initially excited particle usually ionizing that neighbor. It turned out that ICD is a very common decay route in nature as it occurs across van der Waals and hydrogen bonds. The time evolution of ICD is predicted to be highly complex, as its efficiency strongly depends on the distance of the atoms involved and this distance typically changes during the decay. Here we present the first direct measurement of the temporal evolution of ICD using a novel experimental approach.
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Affiliation(s)
- F Trinter
- Institut für Kernphysik, Goethe Universität, Max-von-Laue-Strasse 1, 60438 Frankfurt, Germany
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32
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Stumpf V, Kolorenč P, Gokhberg K, Cederbaum LS. Efficient pathway to neutralization of multiply charged ions produced in Auger processes. PHYSICAL REVIEW LETTERS 2013; 110:258302. [PMID: 23829763 DOI: 10.1103/physrevlett.110.258302] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Indexed: 06/02/2023]
Abstract
After core ionization of an atom or molecule by an x-ray photon, multiply charged ions are produced in the Auger decay process. These ions tend to neutralize their charge when embedded in an environment. We demonstrate that, depending on the atom or molecule and its neighbors, electron transfer mediated decay (ETMD) provides a particularly efficient neutralization pathway for the majority of the ions produced by Auger decay. The mechanism is rather general. As a showcase example, we conducted an ab initio study of the NeKr2 cluster after core ionization of the Ne atom. This example has been chosen because it is amenable to both ab initio calculations and coincidence experiments. We find that even for frozen nuclei, the neutralization rate can be as fast as 0.130 ps(-1). We also show that nuclear dynamics may increase the rate by about an order of magnitude. The generality of the mechanism makes this neutralization pathway important in weakly bonded environments.
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Affiliation(s)
- V Stumpf
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
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33
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Bande A. Electron dynamics of interatomic Coulombic decay in quantum dots induced by a laser field. J Chem Phys 2013; 138:214104. [PMID: 23758355 DOI: 10.1063/1.4807611] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In this paper we investigated the dynamics of an electron in the presence of a time-dependent laser field in a model potential for a two-level single-electron semiconductor quantum dot (QD) that is capable of undergoing interatomic Coulombic decay (ICD) together with an electron bound to a neighboring QD. We demonstrate that ICD can be initiated by coupling the two-level QD to either a continuous or a pulsed moderate to strong laser and we obtain the total and partial decay widths of the resonance excited state in agreement with that from the solely decay of the resonance [A. Bande, K. Gokhberg, and L. S. Cederbaum, J. Chem. Phys. 135, 144112 (2011)]. A detailed discussion of the effects of direct ionization by the laser in single- or multi-photon process as well as Rabi oscillations is furthermore presented.
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Affiliation(s)
- Annika Bande
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany.
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34
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Kimura M, Fukuzawa H, Tachibana T, Ito Y, Mondal S, Okunishi M, Schöffler M, Williams J, Jiang Y, Tamenori Y, Saito N, Ueda K. Controlling Low-Energy Electron Emission via Resonant-Auger-Induced Interatomic Coulombic Decay. J Phys Chem Lett 2013; 4:1838-1842. [PMID: 26283118 DOI: 10.1021/jz4006674] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have investigated interatomic Coulombic decay (ICD) after resonant Auger decay in Ar2, ArKr, and ArXe following 2p3/2 → 4s and 2p3/2 → 3d excitations in Ar, using momentum-resolved electron-ion-ion coincidence. The results illustrate that ICD induced by the resonant Auger decay is a well-controlled way of producing energy-selected slow electrons at a specific site.
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Affiliation(s)
- Miku Kimura
- †Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Hironobu Fukuzawa
- †Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Tetsuya Tachibana
- †Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Yuta Ito
- †Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Subhendu Mondal
- †Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Misaki Okunishi
- †Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
| | - Markus Schöffler
- ‡Institute for Nuclear Physics, Johann Wolfgang Goethe University Frankfurt, Frankfurt 60438, Germany
| | - Joshua Williams
- ‡Institute for Nuclear Physics, Johann Wolfgang Goethe University Frankfurt, Frankfurt 60438, Germany
| | - Yuhai Jiang
- ¶Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Yusuke Tamenori
- §Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo 679-5198, Japan
| | - Norio Saito
- ∥National Institute of Advanced Industrial Science and Technology (AIST), NMIJ, Tsukuba 305-8568, Japan
| | - Kiyoshi Ueda
- †Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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35
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O'Keeffe P, Ripani E, Bolognesi P, Coreno M, Devetta M, Callegari C, Di Fraia M, Prince KC, Richter R, Alagia M, Kivimäki A, Avaldi L. The Role of the Partner Atom and Resonant Excitation Energy in Interatomic Coulombic Decay in Rare Gas Dimers. J Phys Chem Lett 2013; 4:1797-1801. [PMID: 26283111 DOI: 10.1021/jz400671h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- Patrick O'Keeffe
- †CNR-IMIP, Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
| | - Enrico Ripani
- †CNR-IMIP, Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
| | - Paola Bolognesi
- †CNR-IMIP, Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
| | - Marcello Coreno
- †CNR-IMIP, Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
| | - Michele Devetta
- ‡Dipartimento di Fisica, Università degli Studi di Milano, Milan, Italy
| | - Carlo Callegari
- †CNR-IMIP, Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
- §Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | - Michele Di Fraia
- §Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
- ∥Department of Physics, University of Trieste, 34127 Trieste, Italy
| | | | - Robert Richter
- §Elettra-Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
| | | | | | - Lorenzo Avaldi
- †CNR-IMIP, Area della Ricerca di Roma 1, Monterotondo Scalo, Italy
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36
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Pernpointner M, Zobel JP, Fasshauer E, Sil AN. Spin–orbit effects, electronic decay and breakdown phenomena in the photoelectron spectra of iodomethane. Chem Phys 2012. [DOI: 10.1016/j.chemphys.2012.08.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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37
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Hergenhahn U. Production of low kinetic energy electrons and energetic ion pairs by Intermolecular Coulombic Decay. Int J Radiat Biol 2012; 88:871-83. [DOI: 10.3109/09553002.2012.698031] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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38
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Demekhin PV, Stoychev SD, Kuleff AI, Cederbaum LS. Exploring interatomic Coulombic decay by free electron lasers. PHYSICAL REVIEW LETTERS 2011; 107:273002. [PMID: 22243309 DOI: 10.1103/physrevlett.107.273002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Indexed: 05/31/2023]
Abstract
To exploit the high intensity of laser radiation, we propose to select frequencies at which single-photon absorption is of too low energy and two or more photons are needed to produce states of an atom that can undergo interatomic Coulombic decay (ICD) with its neighbors. For Ne(2) it is explicitly demonstrated that the proposed multiphoton absorption scheme is much more efficient than schemes used until now, which rely on single-photon absorption. Extensive calculations on Ne(2) show how the low-energy ICD electrons and Ne(+) pairs are produced for different laser intensities and pulse durations. At higher intensities the production of Ne(+) pairs by successive ionization of the two atoms becomes competitive and the respective emitted electrons interfere with the ICD electrons. It is also shown that a measurement after a time delay can be used to determine the contribution of ICD even at high laser intensity.
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Affiliation(s)
- Philipp V Demekhin
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Heidelberg, Germany.
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39
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Sansone G, Pfeifer T, Simeonidis K, Kuleff AI. Electron Correlation in Real Time. Chemphyschem 2011; 13:661-80. [DOI: 10.1002/cphc.201100528] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2011] [Indexed: 11/11/2022]
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40
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Chiang YC, Otto F, Meyer HD, Cederbaum LS. Interrelation between the distributions of kinetic energy release and emitted electron energy following the decay of electronic states. PHYSICAL REVIEW LETTERS 2011; 107:173001. [PMID: 22107513 DOI: 10.1103/physrevlett.107.173001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Indexed: 05/31/2023]
Abstract
In an electronic decay process followed by fragmentation the kinetic energy release and electron spectra can be measured. Classically they are the mirror image of each other, a fact which is often used in practice. Quantum expressions are derived for both spectra and analyzed. It is demonstrated that these spectra carry complementary quantum information and are related to the nuclear dynamics in different participating electronic states. Illustrative examples show that the classical picture of a mirror image can break down and shed light on the underlying physics.
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Affiliation(s)
- Ying-Chih Chiang
- Theoretische Chemie, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany
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41
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Bande A, Gokhberg K, Cederbaum LS. Dynamics of interatomic Coulombic decay in quantum dots. J Chem Phys 2011; 135:144112. [DOI: 10.1063/1.3646205] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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42
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Ouchi T, Sakai K, Fukuzawa H, Liu XJ, Higuchi I, Tamenori Y, Nagaya K, Iwayama H, Yao M, Zhang D, Ding D, Kuleff AI, Stoychev SD, Demekhin PV, Saito N, Ueda K. Three-electron interatomic Coulombic decay from the inner-valence double-vacancy states in NeAr. PHYSICAL REVIEW LETTERS 2011; 107:053401. [PMID: 21867066 DOI: 10.1103/physrevlett.107.053401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Indexed: 05/31/2023]
Abstract
We have unambiguously identified interatomic Coulombic decay in NeAr from the inner-valence double-vacancy state Ne-Ar(2+)(3s(-2)) to outer-valence triple-vacancy states Ne(+)(2p(-1))-Ar(2+)(3p(-2)) by momentum-resolved electron-ion multicoincidence. This is the first observation of interatomic Coulombic decay where three electrons (3e) participate. The results suggest that this 3e interatomic Coulombic decay is significantly faster than other competing processes like fluorescence decay and charge transfer via curve crossing.
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Affiliation(s)
- T Ouchi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan
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43
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Enhanced production of low energy electrons by alpha particle impact. Proc Natl Acad Sci U S A 2011; 108:11821-4. [PMID: 21730184 DOI: 10.1073/pnas.1104382108] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Radiation damage to living tissue stems not only from primary ionizing particles but to a substantial fraction from the dissociative attachment of secondary electrons with energies below the ionization threshold. We show that the emission yield of those low energy electrons increases dramatically in ion-atom collisions depending on whether or not the target atoms are isolated or embedded in an environment. Only when the atom that has been ionized and excited by the primary particle impact is in immediate proximity of another atom is a fragmentation route known as interatomic Coulombic decay (ICD) enabled. This leads to the emission of a low energy electron. Over the past decade ICD was explored in several experiments following photoionization. Most recent results show its observation even in water clusters. Here we show the quantitative role of ICD for the production of low energy electrons by ion impact, thus approaching a scenario closer to that of radiation damage by alpha particles: We choose ion energies on the maximum of the Bragg peak where energy is most efficiently deposited in tissue. We compare the electron production after colliding He(+) ions on isolated Ne atoms and on Ne dimers (Ne(2)). In the latter case the Ne atom impacted is surrounded by a most simple environment already opening ICD as a deexcitation channel. As a consequence, we find a dramatically enhanced low energy electron yield. The results suggest that ICD may have a significant influence on cell survival after exposure to ionizing radiation.
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44
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Müller C, Voitkiv AB. Resonant two-photon single ionization of two identical atoms. PHYSICAL REVIEW LETTERS 2011; 107:013001. [PMID: 21797541 DOI: 10.1103/physrevlett.107.013001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Indexed: 05/31/2023]
Abstract
Resonant two-photon single ionization in a system consisting of two spatially well-separated identical atoms is studied. Because of two-center electron-electron correlations, the ionization may also proceed through photoexcitation of both atoms with subsequent interatomic Coulombic decay. We show that this channel may qualitatively change the dependence of the photoionization on the field intensity as well as the spectra of emitted electrons.
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Affiliation(s)
- C Müller
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
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45
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Grieves GA, Orlando TM. Intermolecular coulomb decay at weakly coupled heterogeneous interfaces. PHYSICAL REVIEW LETTERS 2011; 107:016104. [PMID: 21797555 DOI: 10.1103/physrevlett.107.016104] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Indexed: 05/31/2023]
Abstract
Surface ejection of H(+)(H(2)O)(n=1-8) from low energy electron irradiated water clusters adsorbed on graphite and graphite with overlayers of Ar, Kr or Xe results from intermolecular Coulomb decay (ICD) at the mixed interface. Inner valence holes in water (2a(1)(-1)), Ar (3s(-1)), Kr (4s(-1)), and Xe (5s(-1)) correlate with the cluster appearance thresholds and initiate ICD. Proton transfer occurs during or immediately after ICD and the resultant Coulomb explosion leads to H(+)(H(2)O)(n=1-8) desorption with kinetic energies that vary with initiating state, final state, and interatomic or molecular distances.
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Affiliation(s)
- Gregory A Grieves
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, 30332-0400, USA
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46
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Paramonov GK, Bandrauk AD, Kühn O. Long-range energy transfer and ionization in extended quantum systems driven by ultrashort spatially shaped laser pulses. Phys Chem Chem Phys 2011; 13:8637-46. [PMID: 21487637 DOI: 10.1039/c1cp20545e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The processes of ionization and energy transfer in a quantum system composed of two distant H atoms with an initial internuclear separation of 100 atomic units (5.29 nm) have been studied by the numerical solution of the time-dependent Schrödinger equation beyond the Born-Oppenheimer approximation. Thereby it has been assumed that only one of the two H atoms was excited by temporally and spatially shaped laser pulses at various laser carrier frequencies. The quantum dynamics of the extended H-H system, which was taken to be initially either in an unentangled or an entangled ground state, has been explored within a linear three-dimensional model, including the two z coordinates of the electrons and the internuclear distance R. An efficient energy transfer from the laser-excited H atom (atom A) to the other H atom (atom B) and the ionization of the latter have been found. It has been shown that the physical mechanisms of the energy transfer as well as of the ionization of atom B are the Coulomb attraction of the laser driven electron of atom A by the proton of atom B and a short-range Coulomb repulsion of the two electrons when their wave functions strongly overlap in the domain of atom B.
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47
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Kopelke S, Gokhberg K, Averbukh V, Tarantelli F, Cederbaum LS. Ab initio interatomic decay widths of excited states by applying Stieltjes imaging to Lanczos pseudospectra. J Chem Phys 2011; 134:094107. [PMID: 21384950 DOI: 10.1063/1.3558739] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- S Kopelke
- Theoretische Chemie, Physikalisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 229, D-69120 Heidelberg, Germany.
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48
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Sakai K, Stoychev S, Ouchi T, Higuchi I, Schöffler M, Mazza T, Fukuzawa H, Nagaya K, Yao M, Tamenori Y, Kuleff AI, Saito N, Ueda K. Electron-transfer-mediated decay and interatomic Coulombic decay from the triply ionized states in argon dimers. PHYSICAL REVIEW LETTERS 2011; 106:033401. [PMID: 21405272 DOI: 10.1103/physrevlett.106.033401] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Indexed: 05/30/2023]
Abstract
We report the first observation of electron-transfer-mediated decay (ETMD) and interatomic Coulombic decay (ICD) from the triply charged states with an inner-valence vacancy, using the Ar dimer as an example. These ETMD and ICD processes, which lead to fragmentation of Ar(3+)-Ar into Ar(2+)-Ar(2+) and Ar(3+)-Ar+, respectively, are unambiguously identified by electron-ion-ion coincidence spectroscopy in which the kinetic energy of the ETMD or ICD electron and the kinetic energy release between the two fragment ions are measured in coincidence.
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Affiliation(s)
- K Sakai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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49
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Kryzhevoi NV, Cederbaum LS. Nonlocal Effects in the Core Ionization and Auger Spectra of Small Ammonia Clusters. J Phys Chem B 2011; 115:5441-7. [PMID: 21218843 DOI: 10.1021/jp109920p] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nikolai V. Kryzhevoi
- Theoretical Chemistry, Institute of Physical Chemistry, Heidelberg University, 69120 Heidelberg, Germany
| | - Lorenz S. Cederbaum
- Theoretical Chemistry, Institute of Physical Chemistry, Heidelberg University, 69120 Heidelberg, Germany
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Matsumoto J, Leredde A, Flechard X, Hayakawa K, Shiromaru H, Rangama J, Zhou CL, Guillous S, Hennecart D, Muranaka T, Mery A, Gervais B, Cassimi A. Asymmetry in multiple-electron capture revealed by radiative charge transfer in Ar dimers. PHYSICAL REVIEW LETTERS 2010; 105:263202. [PMID: 21231656 DOI: 10.1103/physrevlett.105.263202] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Indexed: 05/30/2023]
Abstract
We measured kinetic energies of the fragment ions of argon dimers multiply ionized by low-energy Ar(9+) collisions. For (Ar2)(4+) dissociation, the asymmetric channel (Ar(3+) + Ar(+)) yield is found unexpectedly higher than the symmetric channel (Ar(2+) + Ar(2+)) yield in contrast with previous observation for covalent molecules or clusters. For the dissociation channel (Ar2)(2+)→Ar(+) + Ar(+), two well-separated peaks were observed, clearly evidencing that the direct Coulombic dissociation and the radiative charge transfer followed by ionic dissociation alternatively occur for the dicationic dimers. The respective intensity of these two peaks provides a direct mean to unravel the respective proportion of one-site and two-site double-electron capture, which are found equal for this collision system.
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Affiliation(s)
- J Matsumoto
- Department of Chemistry, Tokyo Metropolitan University, Tokyo, Japan
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