Spin-reorientation transition of Ni/Cu(100) and CO/Ni/Cu(100): Separation of the surface and bulk components of the x-ray magnetic circular dichroism spectrum

Journal Article · Wed Jun 01 04:00:00 EDT 2005 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.71.214420· OSTI ID:20719035

Amemiya, Kenta; Sakai, Enju; Matsumura, Daiju; Abe, Hitoshi; Ohta, Toshiaki; Yokoyama, Toshihiko ^[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 spin-reorientation transition of Ni/Cu(100) and CO/Ni/Cu(100) films was investigated with the depth-resolved x-ray magnetic circular dichroism (XMCD) technique. The XMCD spectra from the surface and inner layers were separately extracted. As for the bare Ni films, the in-plane orbital magnetic moment in the surface layer is significantly enhanced. In contrast, the inner layers exhibit larger perpendicular orbital magnetic moment than the in-plane one. Upon CO adsorption, the surface magnetization is drastically reduced, while the inner layers are unaffected. These results directly explain the spin-reorientation transition in Ni/Cu(100) and CO/Ni/Cu(100)

• OSTI ID: 20719035
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 21 Vol. 71; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ADSORPTION
ANISOTROPY
CARBON MONOXIDE
COPPER
INTERFACES
LAYERS
MAGNETIC CIRCULAR DICHROISM
MAGNETIC MOMENTS
MAGNETISM
MAGNETIZATION
NICKEL
SPIN
SURFACES
THIN FILMS
X RADIATION
X-RAY SPECTRA