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

Alexander Bagger; Ties Haarman; Anna Puig Molina; Poul George Moses; Hirofumi Ishii; Nozomu Hiraoka; Yu Han Wu; Ku Ding Tsuei; Ib Chorkendorff; Frank De Groot

doi:10.1107/S1600577516016933

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

Alexander Bagger^*, Ties Haarman, Anna Puig Molina, Poul George Moses, Hirofumi Ishii, Nozomu Hiraoka, Yu Han Wu, Ku Ding Tsuei, Ib Chorkendorff, Frank De Groot

^*Corresponding author af dette arbejde

Kemisk Institut

6 Citationer (Scopus)

Abstract

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.

Originalsprog	Engelsk
Tidsskrift	Journal of Synchrotron Radiation
Vol/bind	24
Udgave nummer	1
Sider (fra-til)	296-301
Antal sider	6
ISSN	0909-0495
DOI	https://doi.org/10.1107/S1600577516016933
Status	Udgivet - 2017

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10.1107/S1600577516016933

Citationsformater

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title = "1s2p resonant inelastic X-ray scattering combined dipole and quadrupole analysis method",

abstract = "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.",

keywords = "resonant inelestic X-ray scattering, RIXS, X-ray absorption, X-ray emission",

author = "Alexander Bagger and Ties Haarman and Molina, {Anna Puig} and Moses, {Poul George} and Hirofumi Ishii and Nozomu Hiraoka and Wu, {Yu Han} and Tsuei, {Ku Ding} and Ib Chorkendorff and {De Groot}, Frank",

year = "2017",

doi = "10.1107/S1600577516016933",

language = "English",

volume = "24",

pages = "296--301",

journal = "Journal of Synchrotron Radiation",

issn = "0909-0495",

publisher = "Wiley-Blackwell",

number = "1",

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TY - JOUR

T1 - 1s2p resonant inelastic X-ray scattering combined dipole and quadrupole analysis method

AU - Bagger, Alexander

AU - Haarman, Ties

AU - Molina, Anna Puig

AU - Moses, Poul George

AU - Ishii, Hirofumi

AU - Hiraoka, Nozomu

AU - Wu, Yu Han

AU - Tsuei, Ku Ding

AU - Chorkendorff, Ib

AU - De Groot, Frank

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

KW - resonant inelestic X-ray scattering

KW - RIXS

KW - X-ray absorption

KW - X-ray emission

U2 - 10.1107/S1600577516016933

DO - 10.1107/S1600577516016933

M3 - Journal article

C2 - 28009570

AN - SCOPUS:85007008084

SN - 0909-0495

VL - 24

SP - 296

EP - 301

JO - Journal of Synchrotron Radiation

JF - Journal of Synchrotron Radiation

IS - 1

ER -

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

Abstract

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