1s2p resonant inelastic X-ray scattering combined dipole and quadrupole analysis method

Research output: Contribution to journalJournal article – Annual report year: 2017Researchpeer-review

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  • Author: Bagger, Alexander

    Technical University of Denmark, Denmark

  • Author: Haarman, Ties

    Utrecht University, Netherlands

  • Author: Molina, Anna Puig

    Haldor Topsoe AS, Denmark

  • Author: Moses, Poul George

    Haldor Topsoe AS, Denmark

  • Author: Ishii, Hirofumi

    National Synchrotron Radiation Research Center Taiwan, Japan

  • Author: Hiraoka, Nozomu

    National Synchrotron Radiation Research Center Taiwan, Japan

  • Author: Wu, Yu-Han

    National Synchrotron Radiation Research Center Taiwan, Japan

  • Author: Tsuei, Ku-Ding

    National Synchrotron Radiation Research Center Taiwan, Japan

  • Author: Chorkendorff, Ib

    Experimental Surface and Nanomaterials Physics, Department of Physics, Technical University of Denmark, Fysikvej, 2800, Kgs. Lyngby, Denmark

  • Author: De Groot, Frank

    Utrecht University, Netherlands

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In this study an analysis strategy towards using the resonant inelastic X-ray scattering (RIXS) technique more effectively compared with X-ray absorption spectroscopy (XAS) is presented. In particular, the question of when RIXS brings extra information compared with XAS is addressed. To answer this question the RIXS plane is analysed using two models: (i) an exciton model and (ii) a continuum model. The continuum model describes the dipole pre-edge excitations while the exciton model describes the quadrupole excitations. Applying our approach to the experimental 1s2p RIXS planes of VO2 and TiO2, it is shown that only in the case of quadrupole excitations being present is additional information gained by RIXS compared with XAS. Combining this knowledge with methods to calculate the dipole contribution in XAS measurements gives scientists the opportunity to plan more effective experiments.
Original languageEnglish
JournalJournal of Synchrotron Radiation
Volume24
Issue number1
Pages (from-to)296-301
Number of pages6
ISSN0909-0495
DOIs
Publication statusPublished - 2017
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Resonant inelestic X-ray scattering, RIXS, X-ray absorption, X-ray emission

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