Novel synthetic ferrimagnet pinned layers for metallic CPP spin valves requiring high pinning-field and output

被引：5

作者：

Oshima, H ^{[1
]}

Nagasaka, K ^{[1
]}

Jogo, A ^{[1
]}

Ibusuki, T ^{[1
]}

Shimizu, Y ^{[1
]}

Tanaka, A ^{[1
]}

机构：

[1] Fujitsu Labs Ltd, Adv Magnet Recording Lab, Atsugi, Kanagawa 2430197, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2005年 / 41卷 / 10期

关键词：

current perpendicular to plane (CPP); pinned layer; spin valve; synthetic ferrimagnet;

D O I：

10.1109/TMAG.2005.855312

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：

We have succeeded in enhancing the current-perpendicular-to-plane (CPP) magnetoresistance of the synthetic spin-valves by controlling the spin-dependent transport through the synthetic ferrimagntic pinned layer using impurities. The new pinned layer overcomes the disadvantage of the synthetic pinned layer in CPP spin-valves for the magnetoresistance reduction. The experimental results are well described by our calculations based on the two-current theory. The proposed pinned layer, together with our newly developed magnetoresistive ferromagnetic materials, will be quite effective in producing CPP spin-valve sensors for ultrahigh-density data storage systems.

引用

页码：2929 / 2931

页数：3

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