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ID 19342
file
creator
Yaji, Koichiro
Hirai, Chiyuki
Koyama, Michie
Muro, Takayuki
Imada, Shin
Suga, Shigemasa
subject
chromium compounds
ferrimagnetic materials
ferromagnetic materials
band structure
magnetic circular dichroism
X-ray absorption spectra
electron correlations
magnetic moments
configuration interactions
spectral line breadth
abstract
Cr 2p core excited x-ray absorption and x-ray magnetic circular dichroism (XMCD) spectra of ferromagnetic Cr1-δTe with several concentrations of δ=0.11-0.33 and ferrimagnetic Cr5S 6 have been measured. The observed XMCD line shapes are found to very weakly depend on δ for Cr1-δTe, The experimental results are analyzed by means of a configuration-interaction cluster model calculation with consideration of hybridization and electron correlation effects. The obtained values of the spin magnetic moment by the cluster model analyses are in agreement with the results of the band structure calculation. The calculated result shows that the doped holes created by the Cr deficiency exist mainly in the Te 5p orbital of Cr1-δTe, whereas the holes are likely to be in the Cr 3d state for Cr5S6.
journal title
Physical Review B - Condensed Matter and Materials Physics
volume
Volume 70
issue
Issue 6
start page
064402-1
end page
064402-7
date of issued
2004-08-05
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) 2004 The American Physical Society.
relation url
department
Graduate School of Science
Graduate School of Advanced Sciences of Matter
Hiroshima Synchrotron Radiation Center