1s2p resonant inelastic x-ray scattering in {alpha}-Fe{sub 2}O{sub 3}
- National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku, Tokyo 106 (Japan)
- College of Engineering, University of Osaka Prefecture, Gakuen-cho, Sakai 593 (Japan)
- Solid State Physics Laboratory, University of Groningen, Nijenborgh 4 9747 AG Groningen (The Netherlands)
We report experimental and theoretical results on the Fe {ital K} edge x-ray absorption spectrum and 1s2p resonant inelastic x-ray scattering (RIXS) spectra in {alpha}-Fe{sub 2}O{sub 3}. The results are interpreted using an FeO{sub 6}{sup 9}{minus} cluster model with intra-atomic multiplet coupling and interatomic covalency hybridization. The 1s2p RIXS is treated as a coherent second-order optical process. It is shown that the double-peak structure in the pre-edge region of Fe {ital K} absorption spectrum is due to the cubic crystal-field splitting, and that the intensity of the e{sub g} (t{sub 2g}) component in the 1s2p resonant inelastic spectrum is enhanced by tuning the incident photon energy to the e{sub g} (t{sub 2g}) component in the absorption spectrum. {copyright} {ital 1998} {ital The American Physical Society}
- OSTI ID:
- 666551
- Journal Information:
- Physical Review, B: Condensed Matter, Vol. 58, Issue 20; Other Information: PBD: Nov 1998
- Country of Publication:
- United States
- Language:
- English
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