Anomalous behavior of satellite features at the surface and interface in the Ni L-edge x-ray absorption spectra

Journal Article · Tue Nov 15 00:00:00 EST 2005 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.72.201404· OSTI ID:20719835

Amemiya, Kenta; Sakai, Enju; Matsumura, Daiju; Abe, Hitoshi; Ohta, Toshiaki ^[1]

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1. Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan)

The behavior of satellite features appearing in the Ni L-edge x-ray absorption spectrum has been investigated for Cu-capped Ni films on Cu(100) by extracting the interface component of the absorption spectrum. By comparing the results with the surface component, it was revealed that the satellite feature at {approx}6 eV above the L{sub III} peak is suppressed only at the surface. This behavior was well reproduced by a one-electron multiple-scattering calculation. On the other hand, an enhancement in the 3-eV satellite was observed at the surface, associated with an increase in the d-hole number. This is interpreted as an increase in the 3d{sup 8} configuration in the ground state.

• OSTI ID: 20719835
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 72, Issue 20; Other Information: DOI: 10.1103/PhysRevB.72.201404; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTRA
COPPER
ELECTRONS
EV RANGE
GROUND STATES
HOLES
INTERFACES
MULTIPLE SCATTERING
NICKEL
SURFACES
THIN FILMS
X RADIATION
X-RAY SPECTRA