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ID 19361
本文ファイル
著者
Kamakura, Nozomu
Saitoh, Tomihoko
Rader, Oliver
An, Ki-Seok
Kakizaki, Akito
キーワード
iron
ferromagnetic materials
magnetic thin films
photoelectron spectra
binding energy
electron spin polarisation
magnetic moments
抄録(英)
The magnetic properties of fcc Fe films grown on fcc Co(100) have been studied by means of spin-resolved Fe 3s core-level photoemission and characteristics of the measured spin-resolved 3s spectra for fcc Fe films have been investigated. The spin-resolved 3s spectra measured on 3.9 and 6.6 monolayer (ML) fcc Fe films are similar in spectral shape. The 3s majority-spin spectra for these fcc Fe films show weaker intensity on the high-binding-energy side than the spectrum previously reported for bulk bcc Fe. The spin-resolved 3s spectra for the fcc Fe films are analyzed by cluster model calculation consisting of four Fe atoms. In the analysis by the cluster model calculation, effects of the interatomic configuration interaction on the spin-resolved 3s spectra for fcc Fe films are discussed. Itinerancy of 3d electrons is found to be an important factor in describing the spin-resolved Fe 3s spectra. The z spin momentum estimated by the cluster calculation indicates that both the Fe films are in a high-spin ferromagnetic state near the surface. On the other hand, the spin polarization at the background in the spectrum for the 6.6 ML Fe film is much smaller than that for the 3.9 ML film. This variation of the background spin polarization indicates that the magnetic moment averaged up to deeper layers of Fe film is suppressed in the 6.6 ML film.
掲載誌名
Physical Review B - Condensed Matter and Materials Physics
73巻
9号
開始ページ
094437-1
終了ページ
094437-8
出版年月日
2006-03-24
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) 2006 The American Physical Society.
関連情報URL
部局名
理学研究科