FERROMAGNETIC-RESONANCE IN SUPERLATTICES FE/CR ON MGO

被引:2
作者
KOHMOTO, O [1 ]
ARAKI, S [1 ]
机构
[1] TDK CORP, CTR R&D, ICHIKAWA 272, JAPAN
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1992年 / 31卷 / 12B期
关键词
FERROMAGNETIC RESONANCE; IRON; CHROMIUM; MAGNESIUM OXIDE; MAGNETORESISTANCE; ANTIFERROMAGNETIC COUPLING; SATURATION FIELD;
D O I
10.1143/JJAP.31.L1754
中图分类号
O59 [应用物理学];
学科分类号
摘要
Measurements of ferromagnetic resonance (FMR), magnetization and magnetoresistance (DELTArho/rho) have been made for Fe(30 angstrom)/Cr(x) superlattices epitaxially deposited on MgO(001) substrates, to study the antiferromagnetic (AF) coupling between the adjacent Fe layers. For x=6-12 angstrom films, a large DELTArho/rho (> 5%), high saturation field (H(s)) and two FMR peaks were observed. A model of strongly coupled AF magnetization explains the high H(s); however, it cannot explain the observed low field values of the secondary FMR peak.
引用
收藏
页码:L1754 / L1756
页数:3
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