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Resonant inelastic x-ray scattering operators for t(2g) orbital systems SCIE SCOPUS

Title
Resonant inelastic x-ray scattering operators for t(2g) orbital systems
Authors
Kim, B. J.Khaliullin, Giniyat
Date Issued
2017-08
Publisher
AMER PHYSICAL SOC
Abstract
We derive general expressions for resonant inelastic x-ray scattering (RIXS) operators for t(2g) orbital systems, which exhibit a rich array of unconventional magnetism arising from unquenched orbital moments. Within the fast collision approximation, which is valid especially for 4d and 5d transition metal compounds with short core-hole lifetimes, the RIXS operators are expressed in terms of total spin and orbital angular momenta of the constituent ions. We then map these operators onto pseudospins that represent spin-orbit entangled magnetic moments in systems with strong spin-orbit coupling. Applications of our theory to such systems as iridates and ruthenates are discussed, with a particular focus on compounds based on d(4) ions with Van Vleck-type nonmagnetic ground state.
URI
https://oasis.postech.ac.kr/handle/2014.oak/92061
DOI
10.1103/PhysRevB.96.085108
ISSN
2469-9950
Article Type
Article
Citation
PHYSICAL REVIEW B, vol. 96, no. 8, 2017-08
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