1
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Van Stappen C, Van Kuiken BE, Mörtel M, Ruotsalainen KO, Maganas D, Khusniyarov MM, DeBeer S. Correlating Valence and 2p3d RIXS Spectroscopies: A Ligand-Field Study of Spin-Crossover Iron(II). Inorg Chem 2024; 63:7386-7400. [PMID: 38587408 DOI: 10.1021/acs.inorgchem.4c00435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
The molecular spin-crossover phenomenon between high-spin (HS) and low-spin (LS) states is a promising route to next-generation information storage, sensing applications, and molecular spintronics. Spin-crossover complexes also provide a unique opportunity to study the ligand field (LF) properties of a system in both HS and LS states while maintaining the same ligand environment. Presently, we employ complementing valence and core-level spectroscopic methods to probe the electronic excited-state manifolds of the spin-crossover complex [FeII(H2B(pz)2)2phen]0. Light-induced excited spin-state trapping (LIESST) at liquid He temperatures is exploited to characterize magnetic and spectroscopic properties of the photoinduced HS state using SQUID magnetometry and magnetic circular dichroism spectroscopy. In parallel, Fe 2p3d RIXS spectroscopy is employed to examine the ΔS = 0, 1 excited LF states. These experimental studies are combined with state-of-the-art CASSCF/NEVPT2 and CASCI/NEVPT2 calculations characterizing the ground and LF excited states. Analysis of the acquired LF information further supports the notion that the spin-crossover of [FeII(H2B(pz)2)2phen]0 is asymmetric, evidenced by a decrease in eπ in the LS state. The results demonstrate the power of cross-correlating spectroscopic techniques with high and low LF information content to make accurate excited-state assignments, as well as the current capabilities of ab initio theory in interpreting these electronic properties.
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Affiliation(s)
- Casey Van Stappen
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Benjamin E Van Kuiken
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Max Mörtel
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Kari O Ruotsalainen
- Synchrotron SOLEIL, L'Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Dimitrios Maganas
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Marat M Khusniyarov
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
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2
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Raji A, Dong Z, Porée V, Subedi A, Li X, Mundet B, Varbaro L, Domínguez C, Hadjimichael M, Feng B, Nicolaou A, Rueff JP, Li D, Gloter A. Valence-Ordered Thin-Film Nickelate with Tri-component Nickel Coordination Prepared by Topochemical Reduction. ACS NANO 2024; 18:4077-4088. [PMID: 38271616 DOI: 10.1021/acsnano.3c07614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
The metal-hydride-based "topochemical reduction" process has produced several thermodynamically unstable phases across various transition metal oxide series with unusual crystal structures and nontrivial ground states. Here, by such an oxygen (de-)intercalation method we synthesis a samarium nickelate with ordered nickel valences associated with tri-component coordination configurations. This structure, with a formula of Sm9Ni9O22 as revealed by four-dimensional scanning transmission electron microscopy (4D-STEM), emerges from the intricate planes of {303}pc ordered apical oxygen vacancies. X-ray spectroscopy measurements and ab initio calculations show the coexistence of square planar, pyramidal, and octahedral Ni sites with mono-, bi-, and tri-valences. It leads to an intense orbital polarization, charge-ordering, and a ground state with a strong electron localization marked by the disappearance of ligand-hole configuration at low temperature. This nickelate compound provides another example of previously inaccessible materials enabled by topotactic transformations and presents an interesting platform where mixed Ni valence can give rise to exotic phenomena.
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Affiliation(s)
- Aravind Raji
- Laboratoire de Physique des Solides, CNRS, Université Paris-Saclay, Orsay 91400, France
- Synchrotron SOLEIL, L'Orme des Merisiers, BP 48 St. Aubin, Gif sur Yvette 91192, France
| | - Zhengang Dong
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
| | - Victor Porée
- Synchrotron SOLEIL, L'Orme des Merisiers, BP 48 St. Aubin, Gif sur Yvette 91192, France
| | - Alaska Subedi
- CPHT, Ecole Polytechnique, Palaiseau Cedex 91128, France
| | - Xiaoyan Li
- Laboratoire de Physique des Solides, CNRS, Université Paris-Saclay, Orsay 91400, France
| | - Bernat Mundet
- Department of Quantum Matter Physics, University of Geneva, Geneva 1211, Switzerland
- Electron Spectrometry and Microscopy Laboratory (LSME), Institute of Physics (IPHYS), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
| | - Lucia Varbaro
- Department of Quantum Matter Physics, University of Geneva, Geneva 1211, Switzerland
| | - Claribel Domínguez
- Department of Quantum Matter Physics, University of Geneva, Geneva 1211, Switzerland
| | - Marios Hadjimichael
- Department of Quantum Matter Physics, University of Geneva, Geneva 1211, Switzerland
| | - Bohan Feng
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
| | - Alessandro Nicolaou
- Synchrotron SOLEIL, L'Orme des Merisiers, BP 48 St. Aubin, Gif sur Yvette 91192, France
| | - Jean-Pascal Rueff
- Synchrotron SOLEIL, L'Orme des Merisiers, BP 48 St. Aubin, Gif sur Yvette 91192, France
- LCPMR, Sorbonne Université, CNRS, Paris 75005, France
| | - Danfeng Li
- Department of Physics, City University of Hong Kong, Kowloon, Hong Kong
- City University of Hong Kong Shenzhen Research Institute, Shenzhen, Guangdong 518057, China
| | - Alexandre Gloter
- Laboratoire de Physique des Solides, CNRS, Université Paris-Saclay, Orsay 91400, France
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3
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Fabbris G, Meyers D, Shen Y, Bisogni V, Zhang J, Mitchell JF, Norman MR, Johnston S, Feng J, Chiuzbăian GS, Nicolaou A, Jaouen N, Dean MPM. Resonant inelastic x-ray scattering data for Ruddlesden-Popper and reduced Ruddlesden-Popper nickelates. Sci Data 2023; 10:174. [PMID: 36991033 PMCID: PMC10060392 DOI: 10.1038/s41597-023-02079-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/16/2023] [Indexed: 03/31/2023] Open
Abstract
Ruddlesden-Popper and reduced Ruddlesden-Popper nickelates are intriguing candidates for mimicking the properties of high-temperature superconducting cuprates. The degree of similarity between these nickelates and cuprates has been the subject of considerable debate. Resonant inelastic x-ray scattering (RIXS) has played an important role in exploring their electronic and magnetic excitations, but these efforts have been stymied by inconsistencies between different samples and the lack of publicly available data for detailed comparison. To address this issue, we present open RIXS data on La4Ni3O10 and La4Ni3O8.
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Affiliation(s)
- G Fabbris
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, 11973, USA.
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, 60439, USA.
| | - D Meyers
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, 11973, USA
- Department of Physics, Oklahoma State University, Stillwater, Oklahoma, 74078, USA
| | - Y Shen
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, 11973, USA
| | - V Bisogni
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York, 11973, USA
| | - J Zhang
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois, 60439, USA
- Institute of Crystal Materials, Shandong University, Jinan, Shandong, 250100, China
| | - J F Mitchell
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - M R Norman
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - S Johnston
- Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee, 37966, USA
- Institute of Advanced Materials and Manufacturing, The University of Tennessee, Knoxville, Tennessee, 37996, USA
| | - J Feng
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, 75005, Paris, France
- Institute of Advanced Science Facilities, Shenzhen, Guangdong, 518107, China
| | - G S Chiuzbăian
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique-Matière et Rayonnement, 75005, Paris, France
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192, Gif-sur-Yvette, France
| | - A Nicolaou
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192, Gif-sur-Yvette, France
| | - N Jaouen
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192, Gif-sur-Yvette, France
| | - M P M Dean
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, 11973, USA.
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4
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Singh A, Huang HY, Chu YY, Hua CY, Lin SW, Fung HS, Shiu HW, Chang J, Li JH, Okamoto J, Chiu CC, Chang CH, Wu WB, Perng SY, Chung SC, Kao KY, Yeh SC, Chao HY, Chen JH, Huang DJ, Chen CT. Development of the Soft X-ray AGM-AGS RIXS beamline at the Taiwan Photon Source. JOURNAL OF SYNCHROTRON RADIATION 2021; 28:977-986. [PMID: 33950006 PMCID: PMC8127366 DOI: 10.1107/s1600577521002897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 03/18/2021] [Indexed: 06/01/2023]
Abstract
We report on the development of a high-resolution and highly efficient beamline for soft X-ray resonant inelastic X-ray scattering (RIXS) located at the Taiwan Photon Source. This beamline adopts an optical design that uses an active grating monochromator (AGM) and an active grating spectrometer (AGS) to implement the energy compensation principle of grating dispersion. Active gratings are utilized to diminish defocus, coma and higher-order aberrations, as well as to decrease the slope errors caused by thermal deformation and optical polishing. The AGS is mounted on a rotatable granite platform to enable momentum-resolved RIXS measurements with scattering angles over a wide range. Several high-precision instruments developed in-house for this beamline are described briefly. The best energy resolution obtained from this AGM-AGS beamline was 12.4 meV at 530 eV, achieving a resolving power of 4.2 × 104, while the bandwidth of the incident soft X-rays was kept at 0.5 eV. To demonstrate the scientific impact of high-resolution RIXS, we present an example of momentum-resolved RIXS measurements on a high-temperature superconducting cuprate, i.e. La2-xSrxCuO4. The measurements reveal the A1g buckling phonons in superconducting cuprates, opening a new opportunity to investigate the coupling between these phonons and charge-density waves.
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Affiliation(s)
- A. Singh
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - H. Y. Huang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Y. Y. Chu
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - C. Y. Hua
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - S. W. Lin
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - H. S. Fung
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - H. W. Shiu
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - J. Chang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - J. H. Li
- Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - J. Okamoto
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - C. C. Chiu
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - C. H. Chang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - W. B. Wu
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - S. Y. Perng
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - S. C. Chung
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - K. Y. Kao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - S. C. Yeh
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - H. Y. Chao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - J. H. Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - D. J. Huang
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
- Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - C. T. Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
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5
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Dziarzhytski S, Biednov M, Dicke B, Wang A, Miedema PS, Engel RY, Schunck JO, Redlin H, Weigelt H, Siewert F, Behrens C, Sinha M, Schulte A, Grimm-Lebsanft B, Chiuzbăian SG, Wurth W, Beye M, Rübhausen M, Brenner G. The TRIXS end-station for femtosecond time-resolved resonant inelastic x-ray scattering experiments at the soft x-ray free-electron laser FLASH. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2020; 7:054301. [PMID: 32953941 PMCID: PMC7498279 DOI: 10.1063/4.0000029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
We present the experimental end-station TRIXS dedicated to time-resolved soft x-ray resonant inelastic x-ray scattering (RIXS) experiments on solid samples at the free-electron laser FLASH. Using monochromatized ultrashort femtosecond XUV/soft x-ray photon pulses in combination with a synchronized optical laser in a pump-probe scheme, the TRIXS setup allows measuring sub-picosecond time-resolved high-resolution RIXS spectra in the energy range from 35 eV to 210 eV, thus spanning the M-edge (M1 and M2,3) absorption resonances of 3d transition metals and N4,5-edges of rare earth elements. A Kirkpatrick-Baez refocusing mirror system at the first branch of the plane grating monochromator beamline (PG1) provides a focus of (6 × 6) μm2 (FWHM) at the sample. The RIXS spectrometer reaches an energy resolution of 35-160 meV over the entire spectral range. The optical laser system based on a chirped pulse optical parametric amplifier provides approximately 100 fs (FWHM) long photon pulses at the fundamental wavelength of 800 nm and a fluence of 120 mJ/cm2 at a sample for optical pump-XUV probe measurements. Furthermore, optical frequency conversion enables experiments at 400 nm or 267 nm with a fluence of 80 and 30 mJ/cm2, respectively. Some of the first (pump-probe) RIXS spectra measured with this setup are shown. The measured time resolution for time-resolved RIXS measurements has been characterized as 287 fs (FWHM) for the used energy resolution.
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Affiliation(s)
| | - M. Biednov
- European XFEL GmbH, Holzkoppel 4, 22869 Schenefeld, Germany
| | - B. Dicke
- Institute of Nanostructure and Solid State Physics, University of Hamburg and Center for Free-Electron Laser Science (CFEL), Notkestr. 85, Hamburg 22607, Germany
| | - A. Wang
- Sorbonne Université, CNRS (UMR 7614), Laboratoire de Chimie Physique-Matière et Rayonnement, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | | | | | | | - H. Redlin
- DESY, Notkestr. 85, Hamburg 22607, Germany
| | - H. Weigelt
- DESY, Notkestr. 85, Hamburg 22607, Germany
| | - F. Siewert
- Helmholtz Zentrum Berlin, Department Optics and Beamlines, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - C. Behrens
- DESY, Notkestr. 85, Hamburg 22607, Germany
| | - M. Sinha
- DESY, Notkestr. 85, Hamburg 22607, Germany
| | - A. Schulte
- DESY, Notkestr. 85, Hamburg 22607, Germany
| | - B. Grimm-Lebsanft
- Institute of Nanostructure and Solid State Physics, University of Hamburg and Center for Free-Electron Laser Science (CFEL), Notkestr. 85, Hamburg 22607, Germany
| | - S. G. Chiuzbăian
- Sorbonne Université, CNRS (UMR 7614), Laboratoire de Chimie Physique-Matière et Rayonnement, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - W. Wurth
- DESY, Notkestr. 85, Hamburg 22607, Germany
| | - M. Beye
- DESY, Notkestr. 85, Hamburg 22607, Germany
| | - M. Rübhausen
- Institute of Nanostructure and Solid State Physics, University of Hamburg and Center for Free-Electron Laser Science (CFEL), Notkestr. 85, Hamburg 22607, Germany
| | - G. Brenner
- DESY, Notkestr. 85, Hamburg 22607, Germany
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6
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Chuang YD, Feng X, Glans-Suzuki PA, Yang W, Padmore H, Guo J. A design of resonant inelastic X-ray scattering (RIXS) spectrometer for spatial- and time-resolved spectroscopy. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:695-707. [PMID: 32381770 PMCID: PMC7206552 DOI: 10.1107/s1600577520004440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
The optical design of a Hettrick-Underwood-style soft X-ray spectrometer with Wolter type 1 mirrors is presented. The spectrometer with a nominal length of 3.1 m can achieve a high resolving power (resolving power higher than 10000) in the soft X-ray regime when a small source beam (<3 µm in the grating dispersion direction) and small pixel detector (5 µm effective pixel size) are used. Adding Wolter mirrors to the spectrometer before its dispersive elements can realize the spatial imaging capability, which finds applications in the spectroscopic studies of spatially dependent electronic structures in tandem catalysts, heterostructures, etc. In the pump-probe experiments where the pump beam perturbs the materials followed by the time-delayed probe beam to reveal the transient evolution of electronic structures, the imaging capability of the Wolter mirrors can offer the pixel-equivalent femtosecond time delay between the pump and probe beams when their wavefronts are not collinear. In combination with some special sample handing systems, such as liquid jets and droplets, the imaging capability can also be used to study the time-dependent electronic structure of chemical transformation spanning multiple time domains from microseconds to nanoseconds. The proposed Wolter mirrors can also be adopted to the existing soft X-ray spectrometers that use the Hettrick-Underwood optical scheme, expanding their capabilities in materials research.
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Affiliation(s)
- Yi-De Chuang
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 6-2100, Berkeley, CA 94720, USA
| | - Xuefei Feng
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 6-2100, Berkeley, CA 94720, USA
| | - Per-Anders Glans-Suzuki
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 6-2100, Berkeley, CA 94720, USA
| | - Wanli Yang
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 6-2100, Berkeley, CA 94720, USA
| | - Howard Padmore
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 6-2100, Berkeley, CA 94720, USA
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, MS 6-2100, Berkeley, CA 94720, USA
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7
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Schulz C, Lieutenant K, Xiao J, Hofmann T, Wong D, Habicht K. Characterization of the soft X-ray spectrometer PEAXIS at BESSY II. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:238-249. [PMID: 31868758 PMCID: PMC6927519 DOI: 10.1107/s1600577519014887] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 11/04/2019] [Indexed: 06/02/2023]
Abstract
The performance of the recently commissioned spectrometer PEAXIS for resonant inelastic soft X-ray scattering (RIXS) and X-ray photoelectron spectroscopy and its hosting beamline U41-PEAXIS at the BESSY II synchrotron are characterized. The beamline provides linearly polarized light from 180 eV to 1600 eV allowing for RIXS measurements in the range 200-1200 eV. The monochromator optics can be operated in different configurations to provide either high flux with up to 1012 photons s-1 within the focal spot at the sample or high energy resolution with a full width at half maximum of <40 meV at an incident photon energy of ∼400 eV. The measured total energy resolution of the RIXS spectrometer is in very good agreement with theoretically predicted values obtained by ray-tracing simulations. PEAXIS features a 5 m-long RIXS spectrometer arm that can be continuously rotated about the sample position by 106° within the horizontal photon scattering plane, thus enabling the study of momentum-transfer-dependent excitations. Selected scientific examples are presented to demonstrate the instrument capabilities, including measurements of excitations in single-crystalline NiO and in liquid acetone employing a fluid cell sample manipulator. Planned upgrades of the beamline and the RIXS spectrometer to further increase the energy resolution to ∼100 meV at 1000 eV incident photon energy are discussed.
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Affiliation(s)
- Christian Schulz
- Department of Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
| | - Klaus Lieutenant
- Department of Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
| | - Jie Xiao
- Department of Highly Sensitive X-ray Spectroscopy, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
| | - Tommy Hofmann
- Department of Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
| | - Deniz Wong
- Department of Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
| | - Klaus Habicht
- Department of Methods for Characterization of Transport Phenomena in Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, D-14109 Berlin, Germany
- Institut für Physik und Astronomie, Universität Potsdam, D-14476 Potsdam, Germany
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8
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Carniato S, Selles P, Ferté A, Berrah N, Wuosmaa AH, Nakano M, Hikosaka Y, Ito K, Žitnik M, Bučar K, Andric L, Palaudoux J, Penent F, Lablanquie P. Double-core ionization photoelectron spectroscopy of C6H6: Breakdown of the “intuitive” ortho-meta-para binding energy ordering of K−1K−1 states. J Chem Phys 2019; 151:214303. [DOI: 10.1063/1.5128614] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S. Carniato
- Laboratoire de Chimie Physique-Matière et Rayonnement (UMP 7614), Sorbonne Université, CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - P. Selles
- Laboratoire de Chimie Physique-Matière et Rayonnement (UMP 7614), Sorbonne Université, CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - A. Ferté
- Laboratoire de Chimie Physique-Matière et Rayonnement (UMP 7614), Sorbonne Université, CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - N. Berrah
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - A. H. Wuosmaa
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269, USA
| | - M. Nakano
- Photon Factory, Institute of Materials Structure Science, Tsukuba 305-0801, Japan
| | - Y. Hikosaka
- Institute of Liberal Arts and Sciences, University of Toyama, Toyama 930-0194, Japan
| | - K. Ito
- Photon Factory, Institute of Materials Structure Science, Tsukuba 305-0801, Japan
- Synchrotron SOLEIL, l’Orme des Merisiers, Saint-Aubin, Boîte Postale 48, 91192 Gif-sur-Yvette Cedex, France
| | - M. Žitnik
- Jozef Stefan Institute, Jamova Cesta 39, SI-1001 Ljubljana, Slovenija
| | - K. Bučar
- Jozef Stefan Institute, Jamova Cesta 39, SI-1001 Ljubljana, Slovenija
| | - L. Andric
- Laboratoire de Chimie Physique-Matière et Rayonnement (UMP 7614), Sorbonne Université, CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - J. Palaudoux
- Laboratoire de Chimie Physique-Matière et Rayonnement (UMP 7614), Sorbonne Université, CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - F. Penent
- Laboratoire de Chimie Physique-Matière et Rayonnement (UMP 7614), Sorbonne Université, CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - P. Lablanquie
- Laboratoire de Chimie Physique-Matière et Rayonnement (UMP 7614), Sorbonne Université, CNRS, 4 Place Jussieu, 75252 Paris Cedex 05, France
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9
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Temperton RH, Skowron ST, Handrup K, Gibson AJ, Nicolaou A, Jaouen N, Besley E, O'Shea JN. Resonant inelastic X-ray scattering of a Ru photosensitizer: Insights from individual ligands to the electronic structure of the complete molecule. J Chem Phys 2019; 151:074701. [PMID: 31438696 DOI: 10.1063/1.5114692] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
N 1s Resonant Inelastic X-ray Scattering (RIXS) was used to probe the molecular electronic structure of the ruthenium photosensitizer complex cis-bis(isothiocyanato) bis(2,2'-bipyridyl-4,4'-dicarboxylato) ruthenium(II), known as "N3." In order to interpret these data, crystalline powder samples of the bipyridine-dicarboxylic acid ligand ("bi-isonicotinic acid") and the single ring analog "isonicotinic acid" were studied separately using the same method. Clear evidence for intermolecular hydrogen bonding is observed for each of these crystalline powders, along with clear vibronic coupling features. For bi-isonicotinic acid, these results are compared to those of a physisorbed multilayer, where no hydrogen bonding is observed. The RIXS of the "N3" dye, again prepared as a bulk powder sample, is interpreted in terms of the orbital contributions of the bi-isonicotinic acid and thiocyanate ligands by considering the two different nitrogen species. This allows direct comparison with the isolated ligand molecules where we highlight the impact of the central Ru atom on the electronic structure of the ligand. Further interpretation is provided through complementary resonant photoemission spectroscopy and density functional theory calculations. This combination of techniques allows us to confirm the localization and relative coupling of the frontier orbitals and associated vibrational losses.
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Affiliation(s)
- Robert H Temperton
- School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | - Stephen T Skowron
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | - Karsten Handrup
- Synchrotron Radiation Research, Department of Physics, Box 118, SE-221 00 Lund, Sweden
| | - Andrew J Gibson
- School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | | | - Nicolas Jaouen
- Synchrotron SOLEIL, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - Elena Besley
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
| | - James N O'Shea
- School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, United Kingdom
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10
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Beye M, Engel RY, Schunck JO, Dziarzhytski S, Brenner G, Miedema PS. Non-linear soft x-ray methods on solids with MUSIX-the multi-dimensional spectroscopy and inelastic x-ray scattering endstation. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:014003. [PMID: 30504529 DOI: 10.1088/1361-648x/aaedf3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
With the intense and coherent x-ray pulses available from free-electron lasers, the possibility to transfer non-linear spectroscopic methods from the laser lab to the x-ray world arises. Advantages especially regarding selectivity and thus information content as well as an improvement of signal levels are expected. The use of coherences is especially fruitful and the example of coherent x-ray/optical sum-frequency generation is discussed. However, many non-linear x-ray methods still await discovery, partially due to the necessity for extremely adaptable and versatile instrumentation that can be brought to free-electron lasers for the analysis of the spectral content emitted from the sample into a continuous range of emission angles. Such an instrument (called MUSIX) is being developed and employed at FLASH, the free-electron laser in Hamburg and is described in this contribution together with first results.
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Affiliation(s)
- M Beye
- Deutsches Elektronen Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany. Physics Department, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
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11
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Popescu H, Perron J, Pilette B, Vacheresse R, Pinty V, Gaudemer R, Sacchi M, Delaunay R, Fortuna F, Medjoubi K, Desjardins K, Luning J, Jaouen N. COMET: a new end-station at SOLEIL for coherent magnetic scattering in transmission. JOURNAL OF SYNCHROTRON RADIATION 2019; 26:280-290. [PMID: 30655496 DOI: 10.1107/s1600577518016612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 11/22/2018] [Indexed: 06/09/2023]
Abstract
A new instrument named COMET for COherent Magnetic scattering Experiments in Transmission using polarized soft X-rays has been designed and built. This high-vacuum setup is placed at the intermediate focal point of the elastic branch of the SEXTANTS beamline at Synchrotron SOLEIL. The main application is in solid state physics, the instrument being optimized for studying material properties using coherent scattering of soft X-rays with an emphasis on imaging, with chemical selectivity, the magnetic domains of artificially nano-structured materials. The instrument's principal features are presented and illustrated through recently performed experiments.
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Affiliation(s)
- H Popescu
- Synchrotron Soleil, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - J Perron
- Synchrotron Soleil, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - B Pilette
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique - Matière et Rayonnement, LCP-MR, 75005 Paris, France
| | - R Vacheresse
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique - Matière et Rayonnement, LCP-MR, 75005 Paris, France
| | - V Pinty
- Synchrotron Soleil, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - R Gaudemer
- Synchrotron Soleil, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - M Sacchi
- Synchrotron Soleil, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - R Delaunay
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique - Matière et Rayonnement, LCP-MR, 75005 Paris, France
| | - F Fortuna
- CSNSM, Université Paris-Sud, Bâtiment 104, 91405 Orsay, France
| | - K Medjoubi
- Synchrotron Soleil, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - K Desjardins
- Synchrotron Soleil, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - J Luning
- Sorbonne Université, CNRS, UMR 7614, Laboratoire de Chimie Physique - Matière et Rayonnement, LCP-MR, 75005 Paris, France
| | - N Jaouen
- Synchrotron Soleil, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
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12
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Hahn AW, Van Kuiken BE, Chilkuri VG, Levin N, Bill E, Weyhermüller T, Nicolaou A, Miyawaki J, Harada Y, DeBeer S. Probing the Valence Electronic Structure of Low-Spin Ferrous and Ferric Complexes Using 2p3d Resonant Inelastic X-ray Scattering (RIXS). Inorg Chem 2018; 57:9515-9530. [PMID: 30044087 DOI: 10.1021/acs.inorgchem.8b01550] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Understanding the detailed electronic structure of transition metal ions is essential in numerous areas of inorganic chemistry. In particular, the ability to map out the many particle d-d spectrum of a transition metal catalyst is key to understanding and predicting reactivity. However, from a practical perspective, there are often experimental limitations on the ability to determine the energetic ordering, and multiplicity of all the excited states. These limitations derive in part from parity and spin-selection rules, as well as from the limited energy range of many standard laboratory instruments. Herein, we demonstrate the ability of 2p3d resonant inelastic X-ray scattering (RIXS) to obtain detailed insights into the many particle spectrum of simple inorganic molecular iron complexes. The present study focuses on low-spin ferrous and ferric iron complexes, including [FeIII/II(tacn)2]3+/2+ and [FeIII/II(CN)6]3-/4-. This series thus allows us to assess the contribution of d-count and ligand donor type, by comparing the purely σ-donating tacn ligand to the π-accepting cyanide. In order to highlight the conceptual difference between RIXS and traditional optical spectroscopy, we compare first RIXS results with UV-vis and magnetic circular dichroism spectroscopy. We then highlight the ability of 2p3d RIXS to (1) separate d-d transitions from charge transfer transitions and (2) to determine the many particle d-d spectrum over a much wider energy range than is possible by optical spectroscopy. Our experimental results are correlated with semiempirical multiplet simulations and ab initio complete active space self-consistent field calculations in order to obtain detailed assignments of the excited states. These results show that Δ S = 1, and possibly Δ S = 2, transitions may be observed in 2p3d RIXS spectra. Hence, this methodology has great promise for future applications in all areas of transition metal inorganic chemistry.
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Affiliation(s)
- Anselm W Hahn
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36 , 45470 Mülheim an der Ruhr , Germany
| | - Benjamin E Van Kuiken
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36 , 45470 Mülheim an der Ruhr , Germany
| | - Vijay Gopal Chilkuri
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhem-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Natalia Levin
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36 , 45470 Mülheim an der Ruhr , Germany
| | - Eckhard Bill
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36 , 45470 Mülheim an der Ruhr , Germany
| | - Thomas Weyhermüller
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36 , 45470 Mülheim an der Ruhr , Germany
| | - Alessandro Nicolaou
- Synchrotron SOLEIL , L'Orme des Merisiers, Saint-Aubin , Boîte Postale 48, 91191 Gif-sur-Yvette Cedex, France
| | - Jun Miyawaki
- Institute for Solid State Physics (ISSP) , The University of Tokyo , Kashiwa , Chiba 277-8581 , Japan
| | - Yoshihisa Harada
- Institute for Solid State Physics (ISSP) , The University of Tokyo , Kashiwa , Chiba 277-8581 , Japan
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion , Stiftstr. 34-36 , 45470 Mülheim an der Ruhr , Germany
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13
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Van Kuiken BE, Hahn AW, Nayyar B, Schiewer CE, Lee SC, Meyer F, Weyhermüller T, Nicolaou A, Cui YT, Miyawaki J, Harada Y, DeBeer S. Electronic Spectra of Iron–Sulfur Complexes Measured by 2p3d RIXS Spectroscopy. Inorg Chem 2018; 57:7355-7361. [DOI: 10.1021/acs.inorgchem.8b01010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Benjamin E. Van Kuiken
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Anselm W. Hahn
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Brahamjot Nayyar
- Department of Chemistry, University of Waterloo, Waterloo N2L 3G1, Canada
| | - Christine E. Schiewer
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstr. 4, D-37077 Göttingen, Germany
| | - Sonny C. Lee
- Department of Chemistry, University of Waterloo, Waterloo N2L 3G1, Canada
| | - Franc Meyer
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstr. 4, D-37077 Göttingen, Germany
| | - Thomas Weyhermüller
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
| | | | - Yi-Tao Cui
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Jun Miyawaki
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Yoshihisa Harada
- Institute for Solid State Physics, The University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470 Mülheim an der Ruhr, Germany
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14
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O’Shea JN, Handrup K, Temperton RH, Gibson AJ, Nicolaou A, Jaouen N, Taylor JB, Mayor LC, Swarbrick JC, Schnadt J. Ultra-fast intramolecular vibronic coupling revealed by RIXS and RPES maps of an aromatic adsorbate on TiO2(110). J Chem Phys 2018; 148:204705. [DOI: 10.1063/1.5024862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- James N. O’Shea
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Karsten Handrup
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
| | - Robert H. Temperton
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Andrew J. Gibson
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | | | - Nicolas Jaouen
- Synchrotron SOLEIL, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - John B. Taylor
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Louise C. Mayor
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Janine C. Swarbrick
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Joachim Schnadt
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, P.O. Box 118, 221 00 Lund, Sweden
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15
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O’Shea JN, Handrup K, Temperton RH, Gibson AJ, Nicolaou A, Jaouen N. Exploring ultra-fast charge transfer and vibronic coupling with N 1s RIXS maps of an aromatic molecule coupled to a semiconductor. J Chem Phys 2017; 147:134705. [DOI: 10.1063/1.4999135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- James N. O’Shea
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Karsten Handrup
- Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, SE-221 00 Lund,
Sweden
| | - Robert H. Temperton
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Andrew J. Gibson
- School of Physics, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | | | - Nicolas Jaouen
- SOLEIL, Saint-Aubin, BP 48, 91192
Gif-sur-Yvette, France
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16
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Transmission zone plates as analyzers for efficient parallel 2D RIXS-mapping. Sci Rep 2017; 7:8849. [PMID: 28821805 PMCID: PMC5562906 DOI: 10.1038/s41598-017-09052-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 07/19/2017] [Indexed: 12/05/2022] Open
Abstract
We have implemented and successfully tested an off-axis transmission Fresnel zone plate as spectral analyzer for resonant inelastic X-ray scattering (RIXS). The imaging capabilities of zone plates allow for advanced two-dimensional (2D) mapping applications. By varying the photon energy along a line focus on the sample, we were able to simultaneously record the emission spectra over a range of excitation energies. Moreover, by scanning a line focus across the sample in one dimension, we efficiently recorded RIXS spectra spatially resolved in 2D, increasing the throughput by two orders of magnitude. The presented scheme opens up a variety of novel measurements and efficient, ultra-fast time resolved investigations at X-ray Free-Electron Laser sources.
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17
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Hahn AW, Van Kuiken BE, al Samarai M, Atanasov M, Weyhermüller T, Cui YT, Miyawaki J, Harada Y, Nicolaou A, DeBeer S. Measurement of the Ligand Field Spectra of Ferrous and Ferric Iron Chlorides Using 2p3d RIXS. Inorg Chem 2017; 56:8203-8211. [DOI: 10.1021/acs.inorgchem.7b00940] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Anselm W. Hahn
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, D-45470 Mülheim an der Ruhr, Germany
| | - Benjamin E. Van Kuiken
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, D-45470 Mülheim an der Ruhr, Germany
| | - Mustafa al Samarai
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, D-45470 Mülheim an der Ruhr, Germany
| | - Mihail Atanasov
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, D-45470 Mülheim an der Ruhr, Germany
- Bulgarian Academy of Sciences, Institute of General and Inorganic Chemistry, Akad. Georgi Bontchev Street 11, 1113 Sofia, Bulgaria
| | - Thomas Weyhermüller
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, D-45470 Mülheim an der Ruhr, Germany
| | - Yi-Tao Cui
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Jun Miyawaki
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Yoshihisa Harada
- Institute for Solid State Physics (ISSP), The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581, Japan
| | - Alessandro Nicolaou
- Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, Boîte Postale 48, 91192 Gif-sur-Yvette Cedex, France
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34−36, D-45470 Mülheim an der Ruhr, Germany
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18
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Yin Z, Rehanek J, Löchel H, Braig C, Buck J, Firsov A, Viefhaus J, Erko A, Techert S. Highly efficient soft X-ray spectrometer based on a reflection zone plate for resonant inelastic X-ray scattering measurements. OPTICS EXPRESS 2017; 25:10984-10996. [PMID: 28788785 DOI: 10.1364/oe.25.010984] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We present a newly designed compact and flexible soft X-ray spectrometer for resonant inelastic X-ray scattering (RIXS) studies within an energy range from 380 eV to 410 eV, which would include the K alpha emission lines of vital elements like nitrogen. We utilized an off-axis reflection zone plate (RZP) as the wavelength selective element with a maximum line density of 10000 l/mm. A higher energy resolution over a broader range of ± 15 eV around the designed energy was achieved by displacing the RZP. Additionally, for the first time, an actual optical side effect, the so-called comatic aberration was exploited to increase the energy resolution. First results show a resolving power in the order of 1300 for photon energy of 395 eV, which is comparable to a commercial varied line spacing grating (VLS).
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19
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Qiao R, Li Q, Zhuo Z, Sallis S, Fuchs O, Blum M, Weinhardt L, Heske C, Pepper J, Jones M, Brown A, Spucces A, Chow K, Smith B, Glans PA, Chen Y, Yan S, Pan F, Piper LFJ, Denlinger J, Guo J, Hussain Z, Chuang YD, Yang W. High-efficiency in situ resonant inelastic x-ray scattering (iRIXS) endstation at the Advanced Light Source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:033106. [PMID: 28372380 DOI: 10.1063/1.4977592] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An endstation with two high-efficiency soft x-ray spectrographs was developed at Beamline 8.0.1 of the Advanced Light Source, Lawrence Berkeley National Laboratory. The endstation is capable of performing soft x-ray absorption spectroscopy, emission spectroscopy, and, in particular, resonant inelastic soft x-ray scattering (RIXS). Two slit-less variable line-spacing grating spectrographs are installed at different detection geometries. The endstation covers the photon energy range from 80 to 1500 eV. For studying transition-metal oxides, the large detection energy window allows a simultaneous collection of x-ray emission spectra with energies ranging from the O K-edge to the Ni L-edge without moving any mechanical components. The record-high efficiency enables the recording of comprehensive two-dimensional RIXS maps with good statistics within a short acquisition time. By virtue of the large energy window and high throughput of the spectrographs, partial fluorescence yield and inverse partial fluorescence yield signals could be obtained for all transition metal L-edges including Mn. Moreover, the different geometries of these two spectrographs (parallel and perpendicular to the horizontal polarization of the beamline) provide contrasts in RIXS features with two different momentum transfers.
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Affiliation(s)
- Ruimin Qiao
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Qinghao Li
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Zengqing Zhuo
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Shawn Sallis
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Oliver Fuchs
- Universität Würzburg, Experimentelle Physik 7, 97074 Würzburg, Germany
| | - Monika Blum
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV), Las Vegas, Nevada 89154-4003, USA
| | - Lothar Weinhardt
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV), Las Vegas, Nevada 89154-4003, USA
| | - Clemens Heske
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV), Las Vegas, Nevada 89154-4003, USA
| | - John Pepper
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Michael Jones
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Adam Brown
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Adrian Spucces
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Ken Chow
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Brian Smith
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Per-Anders Glans
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Yanxue Chen
- School of Physics, National Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China
| | - Shishen Yan
- School of Physics, National Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China
| | - Feng Pan
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, People's Republic of China
| | - Louis F J Piper
- Department of Materials Science and Engineering, Binghamton University, Binghamton, New York 13902, USA
| | - Jonathan Denlinger
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Zahid Hussain
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Yi-De Chuang
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - Wanli Yang
- Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
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20
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Chuang YD, Shao YC, Cruz A, Hanzel K, Brown A, Frano A, Qiao R, Smith B, Domning E, Huang SW, Wray LA, Lee WS, Shen ZX, Devereaux TP, Chiou JW, Pong WF, Yashchuk VV, Gullikson E, Reininger R, Yang W, Guo J, Duarte R, Hussain Z. Modular soft x-ray spectrometer for applications in energy sciences and quantum materials. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:013110. [PMID: 28147697 DOI: 10.1063/1.4974356] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Over the past decade, the advances in grating-based soft X-ray spectrometers have revolutionized the soft X-ray spectroscopies in materials research. However, these novel spectrometers are mostly dedicated designs, which cannot be easily adopted for applications with diverging demands. Here we present a versatile spectrometer design concept based on the Hettrick-Underwood optical scheme that uses modular mechanical components. The spectrometer's optics chamber can be used with gratings operated in either inside or outside orders, and the detector assembly can be reconfigured accordingly. The spectrometer can be designed to have high spectral resolution, exceeding 10 000 resolving power when using small source (∼1μm) and detector pixels (∼5μm) with high line density gratings (∼3000 lines/mm), or high throughput at moderate resolution. We report two such spectrometers with slightly different design goals and optical parameters in this paper. We show that the spectrometer with high throughput and large energy window is particularly useful for studying the sustainable energy materials. We demonstrate that the extensive resonant inelastic X-ray scattering (RIXS) map of battery cathode material LiNi1/3Co1/3Mn1/3O2 can be produced in few hours using such a spectrometer. Unlike analyzing only a handful of RIXS spectra taken at selected excitation photon energies across the elemental absorption edges to determine various spectral features like the localized dd excitations and non-resonant fluorescence emissions, these features can be easily identified in the RIXS maps. Studying such RIXS maps could reveal novel transition metal redox in battery compounds that are sometimes hard to be unambiguously identified in X-ray absorption and emission spectra. We propose that this modular spectrometer design can serve as the platform for further customization to meet specific scientific demands.
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Affiliation(s)
- Yi-De Chuang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Yu-Cheng Shao
- Department of Physics, Tamkang University, New Taipei City 25137, Taiwan
| | - Alejandro Cruz
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Kelly Hanzel
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Adam Brown
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Alex Frano
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Ruimin Qiao
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Brian Smith
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Edward Domning
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Shih-Wen Huang
- MAX IV Laboratory, Lund University, SE221-00 Lund, Sweden
| | - L Andrew Wray
- Department of Physics, New York University, New York, New York 10003, USA
| | - Wei-Sheng Lee
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Zhi-Xun Shen
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Thomas P Devereaux
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Jaw-Wern Chiou
- Department of Applied Physics, National University of Kaohsiung, Kaohsiung 811, Taiwan
| | - Way-Faung Pong
- Department of Physics, Tamkang University, New Taipei City 25137, Taiwan
| | - Valeriy V Yashchuk
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Eric Gullikson
- Center for X-ray Optics, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Ruben Reininger
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Wanli Yang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Robert Duarte
- Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Zahid Hussain
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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21
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Yin Z, Peters HB, Hahn U, Gonschior J, Mierwaldt D, Rajkovic I, Viefhaus J, Jooss C, Techert S. An endstation for resonant inelastic X-ray scattering studies of solid and liquid samples. JOURNAL OF SYNCHROTRON RADIATION 2017; 24:302-306. [PMID: 28009571 DOI: 10.1107/s1600577516016611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 10/17/2016] [Indexed: 06/06/2023]
Abstract
A novel experimental setup is presented for resonant inelastic X-ray scattering investigations of solid and liquid samples in the soft X-ray region for studying the complex electronic configuration of (bio)chemical systems. The uniqueness of the apparatus is its high flexibility combined with optimal energy resolution and energy range ratio. The apparatus enables investigation of chemical analyses, which reflects the chemical imprints. The endstation is composed of a main sample chamber, a sample holder for either solid or liquid jet delivery system, and a soft X-ray grating spectrometer for 210-1250 eV with a resolving power of ∼1000. It combines for the first time liquid jet technology with a soft X-ray spectrometer based on the variable line spacing principle. This setup was commissioned at the soft X-ray beamline P04 at PETRA III of the Deutsches Elektronen-Synchrotron in Hamburg which is currently the most brilliant storage-ring-based X-ray radiation source in the world. The first results of liquid and solid samples show that this setup allows the detection of photons across an energy range of ∼300 eV. This covers simultaneously the emission lines of life-important elements like carbon, nitrogen and oxygen in a shot-based procedure.
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Affiliation(s)
- Zhong Yin
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Hans Bernhard Peters
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Ulrich Hahn
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Josef Gonschior
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Daniel Mierwaldt
- Institute for Material Physics, University of Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen, Germany
| | - Ivan Rajkovic
- Structural Dynamics of (Bio)chemical Systems, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
| | - Jens Viefhaus
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
| | - Christian Jooss
- Institute for Material Physics, University of Goettingen, Friedrich-Hund-Platz 1, 37077 Goettingen, Germany
| | - Simone Techert
- Photon Science, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany
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22
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Extreme ultraviolet resonant inelastic X-ray scattering (RIXS) at a seeded free-electron laser. Sci Rep 2016; 6:38796. [PMID: 27941842 PMCID: PMC5150230 DOI: 10.1038/srep38796] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/14/2016] [Indexed: 11/21/2022] Open
Abstract
In the past few years, we have been witnessing an increased interest for studying materials properties under non-equilibrium conditions. Several well established spectroscopies for experiments in the energy domain have been successfully adapted to the time domain with sub-picosecond time resolution. Here we show the realization of high resolution resonant inelastic X-ray scattering (RIXS) with a stable ultrashort X-ray source such as an externally seeded free electron laser (FEL). We have designed and constructed a RIXS experimental endstation that allowed us to successfully measure the d-d excitations in KCoF3 single crystals at the cobalt M2,3-edge at FERMI FEL (Elettra-Sincrotrone Trieste, Italy). The FEL-RIXS spectra show an excellent agreement with the ones obtained from the same samples at the MERIXS endstation of the MERLIN beamline at the Advanced Light Source storage ring (Berkeley, USA). We established experimental protocols for performing time resolved RIXS experiments at a FEL source to avoid X ray-induced sample damage, while retaining comparable acquisition time to the synchrotron based measurements. Finally, we measured and modelled the influence of the FEL mixed electromagnetic modes, also present in externally seeded FELs, and the beam transport with ~120 meV experimental resolution achieved in the presented RIXS setup.
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23
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Couto RC, Guarise M, Nicolaou A, Jaouen N, Chiuzbăian GS, Lüning J, Ekholm V, Rubensson JE, Såthe C, Hennies F, Kimberg V, Guimarães FF, Agren H, Gel'mukhanov F, Journel L, Simon M. Anomalously strong two-electron one-photon X-ray decay transitions in CO caused by avoided crossing. Sci Rep 2016; 6:20947. [PMID: 26860458 PMCID: PMC4748233 DOI: 10.1038/srep20947] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 01/13/2016] [Indexed: 02/08/2023] Open
Abstract
The unique opportunity to study and control electron-nuclear quantum dynamics in coupled potentials offered by the resonant inelastic X-ray scattering (RIXS) technique is utilized to unravel an anomalously strong two-electron one-photon transition from core-excited to Rydberg final states in the CO molecule. High-resolution RIXS measurements of CO in the energy region of 12–14 eV are presented and analyzed by means of quantum simulations using the wave packet propagation formalism and ab initio calculations of potential energy curves and transition dipole moments. The very good overall agreement between the experimental results and the theoretical predictions allows an in-depth interpretation of the salient spectral features in terms of Coulomb mixing of “dark” with “bright” final states leading to an effective two-electron one-photon transition. The present work illustrates that the improved spectral resolution of RIXS spectra achievable today may call for more advanced theories than what has been used in the past.
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Affiliation(s)
- Rafael C Couto
- Theoretical Chemistry &Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden.,Instituto de Química, Universidade Federal Goiás, Campus Samambaia, CP 131, 74001-970 Goiânia, Goiás, Brazil
| | - Marco Guarise
- Laboratorio Nacional Luz Sincrotron, 10000 Campinas, Brazil.,Sorbonne Universités, UPMC Univ Paris 6, UMR7614, Laboratoire de Chimie Physique - Matière et Rayonnement, F-75005 Paris, France
| | - Alessandro Nicolaou
- Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - Nicolas Jaouen
- Synchrotron SOLEIL, l'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette Cedex, France
| | - Gheorghe S Chiuzbăian
- Sorbonne Universités, UPMC Univ Paris 6, UMR7614, Laboratoire de Chimie Physique - Matière et Rayonnement, F-75005 Paris, France
| | - Jan Lüning
- Sorbonne Universités, UPMC Univ Paris 6, UMR7614, Laboratoire de Chimie Physique - Matière et Rayonnement, F-75005 Paris, France
| | - Victor Ekholm
- Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden
| | - Jan-Erik Rubensson
- Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden
| | - Conny Såthe
- MAX IV Laboratory, Lund University, Box 118, 221 00 Lund, Sweden
| | - Franz Hennies
- MAX IV Laboratory, Lund University, Box 118, 221 00 Lund, Sweden
| | - Victor Kimberg
- Theoretical Chemistry &Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Freddy F Guimarães
- Instituto de Química, Universidade Federal Goiás, Campus Samambaia, CP 131, 74001-970 Goiânia, Goiás, Brazil
| | - Hans Agren
- Theoretical Chemistry &Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Faris Gel'mukhanov
- Theoretical Chemistry &Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm, Sweden
| | - Loïc Journel
- Sorbonne Universités, UPMC Univ Paris 6, UMR7614, Laboratoire de Chimie Physique - Matière et Rayonnement, F-75005 Paris, France
| | - Marc Simon
- Sorbonne Universités, UPMC Univ Paris 6, UMR7614, Laboratoire de Chimie Physique - Matière et Rayonnement, F-75005 Paris, France
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24
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Schreck S, Pietzsch A, Kennedy B, Såthe C, Miedema PS, Techert S, Strocov VN, Schmitt T, Hennies F, Rubensson JE, Föhlisch A. Ground state potential energy surfaces around selected atoms from resonant inelastic x-ray scattering. Sci Rep 2016; 7:20054. [PMID: 26821751 PMCID: PMC4731820 DOI: 10.1038/srep20054] [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: 05/11/2015] [Accepted: 11/27/2015] [Indexed: 11/24/2022] Open
Abstract
Thermally driven chemistry as well as materials’ functionality are determined by the potential energy surface of a systems electronic ground state. This makes the potential energy surface a central and powerful concept in physics, chemistry and materials science. However, direct experimental access to the potential energy surface locally around atomic centers and to its long-range structure are lacking. Here we demonstrate how sub-natural linewidth resonant inelastic soft x-ray scattering at vibrational resolution is utilized to determine ground state potential energy surfaces locally and detect long-range changes of the potentials that are driven by local modifications. We show how the general concept is applicable not only to small isolated molecules such as O2 but also to strongly interacting systems such as the hydrogen bond network in liquid water. The weak perturbation to the potential energy surface through hydrogen bonding is observed as a trend towards softening of the ground state potential around the coordinating atom. The instrumental developments in high resolution resonant inelastic soft x-ray scattering are currently accelerating and will enable broad application of the presented approach. With this multidimensional potential energy surfaces that characterize collective phenomena such as (bio)molecular function or high-temperature superconductivity will become accessible in near future.
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Affiliation(s)
- Simon Schreck
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany.,Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, 14476 Potsdam, Germany
| | - Annette Pietzsch
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Brian Kennedy
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Conny Såthe
- Max IV Laboratory, Box 118, 22100 Lund, Sweden
| | - Piter S Miedema
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
| | - Simone Techert
- FS-Structural Dynamics in (Bio)chemistry, Deutsches Elektronen-Synchrotron, Notkestrasse 85, 22607 Hamburg, Germany.,Max Planck Institute for Biophysical Chemistry, Am Faß berg 11, 37077 Göttingen, Germany.,Institute for X-ray Physics, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - Vladimir N Strocov
- Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | - Thorsten Schmitt
- Swiss Light Source, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | | | - Jan-Erik Rubensson
- Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden
| | - Alexander Föhlisch
- Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Strasse 15, 12489 Berlin, Germany.,Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, 14476 Potsdam, Germany
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25
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Englund CJ, Agåker M, Fredriksson P, Olsson A, Johansson N, Rubensson JE, Nordgren J. An ultra-high vacuum chamber for scattering experiments featuring in-vacuum continuous in-plane variation of the angle between entrance and exit vacuum ports. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:095110. [PMID: 26429483 DOI: 10.1063/1.4931041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A concept that enables in-vacuum continuous variation of the angle between two ports in one plane has been developed and implemented. The vacuum chamber allows for measuring scattering cross sections as a function of scattering angle and is intended for resonant inelastic X-ray scattering experiments. The angle between the ports can be varied in the range of 30°-150°, while the pressure change is less than 2 × 10(-10) mbars.
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Affiliation(s)
- Carl-Johan Englund
- Department of Physics and Astronomy, Uppsala University, P.O. Box 516, SE-751 20 Uppsala, Sweden
| | - Marcus Agåker
- Department of Physics and Astronomy, Uppsala University, P.O. Box 516, SE-751 20 Uppsala, Sweden
| | - Pierre Fredriksson
- Department of Physics and Astronomy, Uppsala University, P.O. Box 516, SE-751 20 Uppsala, Sweden
| | - Anders Olsson
- Department of Physics and Astronomy, Uppsala University, P.O. Box 516, SE-751 20 Uppsala, Sweden
| | - Niklas Johansson
- Department of Physics and Astronomy, Uppsala University, P.O. Box 516, SE-751 20 Uppsala, Sweden
| | - Jan-Erik Rubensson
- Department of Physics and Astronomy, Uppsala University, P.O. Box 516, SE-751 20 Uppsala, Sweden
| | - Joseph Nordgren
- Department of Physics and Astronomy, Uppsala University, P.O. Box 516, SE-751 20 Uppsala, Sweden
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26
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Yin Z, Peters HB, Hahn U, Agåker M, Hage A, Reininger R, Siewert F, Nordgren J, Viefhaus J, Techert S. A new compact soft x-ray spectrometer for resonant inelastic x-ray scattering studies at PETRA III. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:093109. [PMID: 26429431 DOI: 10.1063/1.4930968] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We present a newly designed compact grating spectrometer for the energy range from 210 eV to 1250 eV, which would include the Kα(1,2) emission lines of vital elements like C, N, and O. The spectrometer is based on a grazing incidence spherical varied line spacing grating with 2400 l/mm at its center and a radius of curvature of 58 542 mm. First, results show a resolving power of around 1000 at an energy of 550 eV and a working spectrometer for high vacuum (10(-4) mbar) environment without losing photon intensity.
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Affiliation(s)
- Z Yin
- Photon Science, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - H B Peters
- ZM1, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - U Hahn
- Photon Science, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - M Agåker
- Department of Physics, Uppsala University, 75121 Uppsala, Sweden
| | - A Hage
- Photon Science, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - R Reininger
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - F Siewert
- Institute for Nanometre Optics and Technology, Helmholtz Zentrum Berlin, 12489 Berlin, Germany
| | - J Nordgren
- Department of Physics, Uppsala University, 75121 Uppsala, Sweden
| | - J Viefhaus
- Photon Science, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - S Techert
- Photon Science, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
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27
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Liu X, Dean MPM, Liu J, Chiuzbăian SG, Jaouen N, Nicolaou A, Yin WG, Rayan Serrao C, Ramesh R, Ding H, Hill JP. Probing single magnon excitations in Sr₂IrO₄ using O K-edge resonant inelastic x-ray scattering. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2015; 27:202202. [PMID: 25921058 DOI: 10.1088/0953-8984/27/20/202202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Resonant inelastic x-ray scattering (RIXS) at the L-edge of transition metal elements is now commonly used to probe single magnon excitations. Here we show that single magnon excitations can also be measured with RIXS at the K-edge of the surrounding ligand atoms when the center heavy metal elements have strong spin-orbit coupling. This is demonstrated with oxygen K-edge RIXS experiments on the perovskite Sr2IrO4, where low energy peaks from single magnon excitations were observed. This new application of RIXS has excellent potential to be applied to a wide range of magnetic systems based on heavy elements, for which the L-edge RIXS energy resolution in the hard x-ray region is usually poor.
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Affiliation(s)
- X Liu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China. Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA. Collaborative Innovation Center of Quantum Matter, Beijing, People's Republic of China
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