发明授权
- 专利标题: Magnetoresistive device and method for producing the same, and magnetic component
- 专利标题(中): 磁阻装置及其制造方法及磁性部件
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申请号: US10223875申请日: 2002-08-19
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公开(公告)号: US06887717B2公开(公告)日: 2005-05-03
- 发明人: Masayoshi Hiramoto , Nozomu Matsukawa , Hiroshi Sakakima , Hideaki Adachi , Akihiro Odagawa
- 申请人: Masayoshi Hiramoto , Nozomu Matsukawa , Hiroshi Sakakima , Hideaki Adachi , Akihiro Odagawa
- 申请人地址: JP Osaka
- 专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人: Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: Merchant & Gould P.C.
- 优先权: JP11-149878 19990528; JP11-285555 19991006
- 主分类号: H01F10/32
- IPC分类号: H01F10/32 ; H01L43/12 ; H01L21/00
摘要:
A magnetoresistive device including a high-resistivity layer (13), a first magnetic layer (12) and a second magnetic layer (14), the first magnetic layer (12) and the second magnetic layer (14) being arranged so as to sandwich the high-resistivity layer (13), wherein the high-resistivity layer (13) is a barrier for passing tunneling electrons between the first magnetic layer (12) and the second magnetic layer (14), and contains at least one element LONC selected from oxygen, nitrogen and carbon; at least one layer A selected from the first magnetic layer (12) and the second magnetic layer (14) contains at least one metal element M selected from Fe, Ni and Co, and an element RCP different from the metal element M; and the element RCP combines with the element LONC more easily in terms of energy than the metal element M. Accordingly, a novel magnetoresistive device having a low junction resistance and a high MR can be obtained.