发明名称 |
Magnetometric sensor with two magnetically isolated regions formed of spin-polarized materials and magnetic head using the same |
摘要 |
<p>A magnetometric sensor has a wide p-portion (1a) formed of almost perfectly spin-polarized material, a wide d-portion (1b) also formed of almost perfectly spin-polarized material different in coercive force and a narrow n-portion (1c) provided between the wide p-portion and the wide d-portion formed of the almost perfectly spin-polarized material or non-magnetic material, and one of the p-portion and the d-portion changes the spin axes of the conduction electrons in the opposite direction to the other in the presence of a magnetic field for providing a potential gap between the Fermi surface of the p-portion and the Fermi surface of the d-portion, thereby causing electric current to change the amount thereof. <IMAGE></p> |
申请公布号 |
EP0777212(A2) |
申请公布日期 |
1997.06.04 |
申请号 |
EP19960118991 |
申请日期 |
1996.11.27 |
申请人 |
NEC CORPORATION |
发明人 |
MANAKO, TAKASHI;KUBO, YOSHIMI;SHIMAKAWA, YUICHI |
分类号 |
G01R33/09;G11B5/33;G11B5/39;H01F1/40;(IPC1-7):G11B5/33 |
主分类号 |
G01R33/09 |
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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