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ID 19364
file
creator
Matsuno, Jobu
Okabayashi, Jun
Fujimori, Atsushi
Kulatov, Erkin
Kanomata, Takeshi
abstract
We have observed magnetic circular dichroism (MCD) in the soft x-ray absorption spectra of the semiconducting ferromagnet CdCr2Se4 and the metallic ferromagnets CuCr2S4 and CuCr2Se4. The Cr 2p x-ray absorption and MCD spectra show that the d-electron occupancies of the Cr atom in the Cu based Cr sulfide and selenide are not much different from that in the CdCr2Se4 in spite of the different formal valencies Cr3.5+ and Cr3+, respectively. The observed Cu 2p MCD spectra show the existence of small magnetic moments on the Cu sites which are aligned antiparallel to the Cr 3d moment in CuCr2S4 and CuCr2Se4, consistent with band-structure calculation.
journal title
Physical Review B - Condensed Matter and Materials Physics
volume
Volume 63
issue
Issue 22
start page
224420-1
end page
224420-7
date of issued
2001-05-24
publisher
American Physical Society
issn
0163-1829
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2001 The American Physical Society.
relation url
department
Graduate School of Science
Graduate School of Advanced Sciences of Matter