Observation of multiple Zhang-Rice excitations in a correlatedsolid: Resonant inelastic X-ray scattering study of Li2CuO2
Multiple Zhang-Rice type spectral features have been observed in resonant inelastic X-ray scattering (RIXS) from the quasi-one-dimensional cuprate charge transfer insulator Li{sub 2}CuO{sub 2}. The first feature appears at constant emission energy, and is associated with a Zhang-Rice singlet final state. The second is an interplaquette charge transfer excitation that results in a novel triplet Zhang-Rice-type final state. It is accompanied by the presence of a O 2p nonbonding to upper Hubbard band excitation at an energy close to that of a calculated triplet charge transfer Zhang-Rice-type excitation. The site selectivity and polarization rules associated with RIXS allows these two excitations to be distinguished.
- Research Organization:
- COLLABORATION - BostonUniversity
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 919275
- Report Number(s):
- LBNL-63551; EULEEJ; R&D Project: 458111; TRN: US0806341
- Journal Information:
- Europhysics Letters, Vol. 79, Issue 4; Related Information: Journal Publication Date: August 2007; ISSN 0295-5075
- Country of Publication:
- United States
- Language:
- English
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