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JPH0766033A Expired / Lapsed JP ⏱️ 0.0 years remaining

Magnetoresistive element, magnetic thin film memory and magnetoresistive sensor using the magnetoresistive element

Assignee: Mitsubishi Electric Corp
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Filing: 1993-08-30
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Granted: —
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Expires: 2013-08-30
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Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 充分低磁界で高い抵抗変化率がえられると共 に、所望の抵抗変化特性がえられる、磁性薄膜メモリや 磁気抵抗センサ用のMR素子を提供する。 【構成】 第1磁性層1と第2磁性層2とのあいだに非 磁性層4を挟んだ基本的に3層構造で形成される。たと えば磁性薄膜メモリ用のMR素子とするばあいには第1 磁性層1と第2磁性層2の磁化方向が、印加磁界が0の ときに平行または反平行になるように各磁性層を形成す る。また、必要に応じ第1磁性層1や第2磁性層2にバ ッファ層6やキャップ層7などの付加層が設けられ、M R効果を向上させたり、両磁性層の反転磁界を制御する ことができる。さらに非磁性層と第3磁性層を積層し、 基本的に5層構造としても充分低磁界で高いMR効果を 有するMR素子がえられる。 (57) [Summary] [Object] To provide an MR element for a magnetic thin film memory or a magnetoresistive sensor, which can obtain a high resistance change rate in a sufficiently low magnetic field and can obtain desired resistance change characteristics. [Structure] A non-magnetic layer 4 is sandwiched between a first magnetic layer 1 and a second magnetic layer 2 to form a basically three-layer structure. For example, in the case of an MR element for a magnetic thin film memory, Each magnetic layer is formed such that the magnetization directions of the magnetic layer 1 and the second magnetic layer 2 are parallel or antiparallel when the applied magnetic field is zero. If necessary, additional layers such as the buffer layer 6 and the cap layer 7 are provided on the first magnetic layer 1 and the second magnetic layer 2, and M It is possible to improve the R effect and control the switching magnetic fields of both magnetic layers. Furthermore, a non-magnetic layer and a third magnetic layer are laminated, Basically, even with a five-layer structure, an MR element having a sufficiently low magnetic field and a high MR effect can be obtained.

Inventors

  • 👤 Yuji Kawano
  • 👤 裕司 川野
  • 👤 Tatsuya Fukami
  • 👤 達也 深見
  • 👤 Motohisa Taguchi
  • 👤 元久 田口
  • 👤 Kazuhiko Tsutsumi
  • 👤 和彦 堤

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-04 13:56
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/06; G01R33/09; G01R33/093; B; B82; B82Y; B82Y25/00; G11; G11C; G11C11/00; G11C11/02; G11C11/14; H; H01; H01F; H01F10/00; H01F10/32; H01F10/324; H01F10/3268; H01F41/00; H01F41/32; H01F41/325; G11B; G11B5/00; G11B5/127; G11B5/33; G11B5/39; G11B5/3903

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