发明名称 |
Magnetoresistive element |
摘要 |
A current-perpendicular-to-the-plane (CPP) structure magnetoresistive element (43) includes a spin valve film. A boundary (BR) is defined between electrically-conductive layers (55a, 55b) included in a non-magnetic intermediate layer (55) in the spin valve film. A magnetic metallic material (56) and an insulating material (57) exist on the boundary (BR). The insulating material (57) serves to reduce the sectional area of the path for the sensing electric current. A CPP structure magnetoresistive element (43) realizes a larger variation in electrical resistance in response to the rotation of the magnetization in the free magnetic layer (58). A sensing electric current of a smaller level is still employed to obtain a sufficient variation in the voltage. Accordingly, a CPP structure magnetoresistive element (43) embodying the present invention greatly contributes to a further improvement in the recording density and reduction in the electric consumption. <IMAGE> |
申请公布号 |
EP1328027(A2) |
申请公布日期 |
2003.07.16 |
申请号 |
EP20030250021 |
申请日期 |
2003.01.06 |
申请人 |
FUJITSU LIMITED |
发明人 |
SEYAMA, YOSHIHIKO;NAGASAKA, KEIICHI;OSHIMA, HIROTAKA;SHIMIZU, YUTAKA;TANAKA, ATSUSHI |
分类号 |
G11B5/39;H01F10/32;H01L43/08;(IPC1-7):H01L43/08 |
主分类号 |
G11B5/39 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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