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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