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Jin B, Zhou H, Zong Z, Zhang X, Wang G, Zhou L, Chen X. Negative ion formation by neutral hydrogen atom grazing scattering from a LiF(100) surface. RSC Adv 2021; 11:4489-4498. [PMID: 35424408 PMCID: PMC8694513 DOI: 10.1039/d0ra08486g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 12/27/2020] [Indexed: 11/21/2022] Open
Abstract
H− conversion during H0 grazing scattering on a LiF(100) surface, includes H− affinity electron loss to a surface image state.
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Affiliation(s)
- Bo Jin
- School of Nuclear Science and Technology
- Lanzhou University
- Lanzhou 730000
- China
| | - Hu Zhou
- School of Nuclear Science and Technology
- Lanzhou University
- Lanzhou 730000
- China
- College of Chemistry and Chemical Engineering
| | - Zewen Zong
- School of Nuclear Science and Technology
- Lanzhou University
- Lanzhou 730000
- China
| | - Xin Zhang
- School of Nuclear Science and Technology
- Lanzhou University
- Lanzhou 730000
- China
| | - Guangyi Wang
- School of Electronic and Information Engineering
- Lanzhou City University
- Lanzhou 730000
- China
| | - Lihua Zhou
- School of Nuclear Science and Technology
- Lanzhou University
- Lanzhou 730000
- China
| | - Ximeng Chen
- School of Nuclear Science and Technology
- Lanzhou University
- Lanzhou 730000
- China
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Wilhelm RA, Gruber E, Schwestka J, Kozubek R, Madeira TI, Marques JP, Kobus J, Krasheninnikov AV, Schleberger M, Aumayr F. Interatomic Coulombic Decay: The Mechanism for Rapid Deexcitation of Hollow Atoms. PHYSICAL REVIEW LETTERS 2017; 119:103401. [PMID: 28949190 DOI: 10.1103/physrevlett.119.103401] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Indexed: 05/23/2023]
Abstract
The impact of a highly charged ion onto a solid gives rise to charge exchange between the ion and target atoms, so that a slow ion gets neutralized in the vicinity of the surface. Using highly charged Ar and Xe ions and the surface-only material graphene as a target, we show that the neutralization and deexcitation of the ions proceeds on a sub-10 fs time scale. We further demonstrate that a multiple Interatomic Coulombic Decay (ICD) model can describe the observed ultrafast deexcitation. Other deexcitation mechanisms involving nonradiative decay and quasimolecular orbital formation during the impact are not important, as follows from the comparison of our experimental data with the results of first-principles calculations. Our method also enables the estimation of ICD rates directly.
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Affiliation(s)
- Richard A Wilhelm
- TU Wien, Institute of Applied Physics, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria, EU
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany, EU
| | - Elisabeth Gruber
- TU Wien, Institute of Applied Physics, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria, EU
| | - Janine Schwestka
- TU Wien, Institute of Applied Physics, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria, EU
| | - Roland Kozubek
- University Duisburg-Essen, Faculty of Physics and CENIDE, Lotharstrasse 1, 47048 Duisburg, Germany, EU
| | - Teresa I Madeira
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany, EU
| | - José P Marques
- BioISI-Biosystems & Integrative Sciences Institute, Faculdade de Ciéncias da Universidade de Lisboa, 1749-016 Lisbon, Portugal, EU
| | - Jacek Kobus
- Nicolaus Copernicus University, Faculty of Physics, Astronomy and Informatics, Institute of Physics, Grudziądzka 5, 87-100 Toruń, Poland, EU
| | - Arkady V Krasheninnikov
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany, EU
| | - Marika Schleberger
- University Duisburg-Essen, Faculty of Physics and CENIDE, Lotharstrasse 1, 47048 Duisburg, Germany, EU
| | - Friedrich Aumayr
- TU Wien, Institute of Applied Physics, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria, EU
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