发明名称 |
Magnetic devices and sensors based on perovskite manganese oxide materials |
摘要 |
A tri-layer thin film magnetoresistive device using doped perovskite manganate thin films as ferromagnetic elements, wherein a current is transported through the tri-layer structure, is disclosed. A large magnetoresistance change of about a factor of two is obtained in a low magnetic field, less than 150 Oe, which is close to the coercivity of the material of the elements. This device demonstrates that low-field spin-dependent transport in the manganates can be accomplished and that the magnitude of the resulting magnetoresistance is suitable for magnetoresistive field sensor applications.
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申请公布号 |
US5792569(A) |
申请公布日期 |
1998.08.11 |
申请号 |
US19960618184 |
申请日期 |
1996.03.19 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SUN, JONATHAN ZANHONG;GUPTA, ARUNAVA;XIAO, GANG;TROUILLOUD, PHILIP LOUIS;LECOEUR, PHILIPPE P. |
分类号 |
G01R33/09;G11B5/33;G11B5/39;G11C11/15;G11C11/16;G11C11/56;H01F10/00;H01F10/08;H01F10/32;H01L43/08;H01L43/10;(IPC1-7):G11B5/147 |
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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