Observation of the Fe spin spiral structure in Fe/Sm-Co exchange-spring bilayers by Mossbauer spectroscopy

被引：25
|
作者：
Kuncser, VE [1 ]
Doi, M
Keune, W
Askin, M
Spies, H
Jiang, JS
Inomata, A
Bader, SD
机构：
[1] Univ Duisburg Essen, Inst Phys, D-47048 Duisburg, Germany
[2] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[3] Natl Inst Phys Mat, RO-76900 Bucharest, Romania
[4] Nagoya Univ, Dept Mat Sci & Engn, Nagoya, Aichi 464, Japan
[5] Dicle Univ, Fac Phys, Diyarbakir, Turkey
[6] Fujitsu Ltd, Atsugi, Kanagawa, Japan
来源：
PHYSICAL REVIEW B | 2003年 / 68卷 / 06期
关键词：
D O I：
10.1103/PhysRevB.68.064416
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The in-plane Fe spin spiral structure for Fe/Sm-Co(1 (1) over bar 00) exchange-spring magnetic bilayers was investigated by Fe-57 conversion electron Mossbauer spectroscopy during the magnetization reversal process, and correlated with hysteresis loops measured via the longitudinal magneto-optic Kerr effect. A direct experimental proof for a relaxed spiral angular spin distribution in the Fe layer is presented. Under negative applied fields the interfacial Fe spins rotate by up to 40degrees with respect to the easy axis of the Sm-Co hard-magnet layer.
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页数：7
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