Spin‐polarized electron energy loss spectroscopy study of the initial oxidation of Cr(100)
作者:
H. Hopster,
期刊:
Journal of Vacuum Science&Technology A: Vacuum, Surfaces, and Films
(AIP Available online 1991)
卷期:
Volume 9,
issue 3
页码: 1929-1931
ISSN:0734-2101
年代: 1991
DOI:10.1116/1.577546
出版商: American Vacuum Society
关键词: CHROMIUM;OXIDATION;EEL SPECTROSCOPY;ELECTRONIC STRUCTURE;POLARIZATION;CRYSTAL FIELD
数据来源: AIP
摘要:
The electronic excitations of Cr3+magnetic moments at an oxidized Cr(100) surface are studied by spin‐polarized electron energy loss spectroscopy. Sharp loss features are observed due to excitations from the spin‐quartet ground state to doublet states via exchange scattering (predominantly spin flip). The dipole allowed transitions (nonflip) are broadened by crystal field effects. The characteristic Cr3+excitations are observed from the very early stages of oxygen adsorption.
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