Multiatom Resonant Photoemission: Theory and Systematics
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Departamento de CCIA (Facultad de Informatica), Donostia International Physics Center, Centro Mixto CSIC-UPV/EHU, San Sebastian (Spain)
- Department of Physics, University of California, Davis, California 95616 (United States)
A first-principles calculation of the recently discovered interatomic multiatom resonant photoemission (MARPE) effect is presented. In this phenomenon, core photoelectron intensities are enhanced when the photon energy is tuned to a core-level absorption edge of nonidentical neighboring atoms, thus enabling direct determination of near-neighbor atomic identities. Both the multiatom character of MARPE and retardation effects in the photon and electron interactions in the resonant channel are shown to be crucial. Measured peak-intensity enhancements of 40{percent} in MnO and spectral shapes similar to the corresponding x-ray absorption profiles are well reproduced by this theory. {copyright} {ital 1999} {ital The American Physical Society}
- Research Organization:
- Lawrence Berkeley National Laboratory
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 341416
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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