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ID 19342
本文ファイル
著者
Yaji, Koichiro
Hirai, Chiyuki
Koyama, Michie
Muro, Takayuki
Imada, Shin
Suga, Shigemasa
キーワード
chromium compounds
ferrimagnetic materials
ferromagnetic materials
band structure
magnetic circular dichroism
X-ray absorption spectra
electron correlations
magnetic moments
configuration interactions
spectral line breadth
抄録(英)
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.
掲載誌名
Physical Review B - Condensed Matter and Materials Physics
70巻
6号
開始ページ
064402-1
終了ページ
064402-7
出版年月日
2004-08-05
出版者
American Physical Society
ISSN
0163-1829
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2004 The American Physical Society.
関連情報URL
部局名
理学研究科
先端物質科学研究科
放射光科学研究センター