发明名称 |
SPIN TORQUE OSCILLATOR SENSOR EMPLOYING ANTIPARALLEL COUPLED OSCILATION LAYERS |
摘要 |
A spin torque magnetoresistive sensor having a very small gap thickness. The sensor operates by measuring the change in frequency of a spin torque induced magnetic oscillation in magnetic layers of the sensor to detect the presence of a magnetic field. The sensor includes a pair of free magnetic layers that are antiparallel coupled by a thin non-magnetic coupling layer there-between. The sensor does not include a pinned layer structure nor an associated AFM pinning layer, which allows the sensor to be constructed much thinner than prior art sensors.
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申请公布号 |
US2011141629(A1) |
申请公布日期 |
2011.06.16 |
申请号 |
US20090636108 |
申请日期 |
2009.12.11 |
申请人 |
BRAGANCA PATRICK M;GURNEY BRUCE A |
发明人 |
BRAGANCA PATRICK M.;GURNEY BRUCE A. |
分类号 |
G11B5/33 |
主分类号 |
G11B5/33 |
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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