Extra large unidirectional anisotropy constant of Co-Fe/Mn-Ir bilayers with ultra-thin antiferromagnetic layer

被引：22

作者：

Tsunoda, M ^{[1
]}

Nishikawa, K ^{[1
]}

Damm, T ^{[1
]}

Hashimoto, T ^{[1
]}

Takahashi, M ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Elect Engn, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2002年 / 239卷 / 1-3期

关键词：

unidirectional anisotropy; exchange coupling energy; exchange bias; blocking temperature;

D O I：

10.1016/S0304-8853(01)00519-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Unidirectional anisotropy constant. J(K), of Co1-xFex/Mn-Ir bilayer was investigated as a function of the Fe concentration, x, As a result, we obtained an extra large value of JK, which exceeds 0.5 erg/cm(2) at x = 0.3 - 0.4 with the ultra-thin (50-100 Angstrom) Mn-Ir layer. The blocking temperature of Co0.7Fe0.3 40 Angstrom/Mn-Ir 100 Angstrom bilayer was 290degreesC, which is sufficiently high for the application of spin valve giant magnetoresistive devices. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：182 / 184

页数：3

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