Effect of Ir content and sputtering conditions on unidirectional anisotropy of Ni-Fe/Mn-Ir films fabricated under the extremely clean sputtering process

被引:8
作者
Yagami, K [1 ]
Tsunoda, M
Sugano, S
Takahashi, M
机构
[1] Tohoku Univ, Dept Elect Engn, Sendai, Miyagi 9808579, Japan
[2] Sony Corp, CPC, Magnet Devices Div, Tagajyo 9850842, Japan
[3] Daido Steel Co LTD, Res & Dev Lab, Nagoya, Aichi 457, Japan
关键词
exchange anisotropy; extremely clean sputtering; Ir content; Mn-Ir; sputtering conditions;
D O I
10.1109/20.800708
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An effect of the Ir content and sputtering conditions of Mn-Ir films on the strength of exchange anisotropy was investigated in Ni-Fe/Mn-Ir layers fabricated under the extremely clean sputtering process. We found that the unidirectional anisotropy constant J(K) monotonously increased with increasing the Ir content and decreasing the deposition rate of Mn-Ir films. The change of J(K) against the deposition late of Mn-Ir films Is possibly caused by the quite slight changes of the microstructure of Mn-Ir films, which were undetectable with XRD.
引用
收藏
页码:3919 / 3921
页数:3
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