自旋阀中扩散输运极限下自旋转移矩与巨磁电阻的角相关性
Correlation of the angular dependence of spin-transfer torque and giant magnetoresistance in the limit of diffusive transport in spin valves
摘要：
在扩散输运的限制下，对金属自旋阀异质结构中巨磁电阻和自旋转移矩的角变化进行了理论分析。结果表明，非对称自旋阀中的自旋转移矩在非共线磁位形下可以消失，这种非标准的自旋转移矩行为通常与巨磁电阻的非单调角度依赖性有关，在非共线磁位形下具有全局最小值.
英文摘要：
Angular variation of giant magnetoresistance and spin-transfer torque in metallic spin-valve heterostructures is analyzed theoretically in the limit of diffusive transport. It is shown that the spin-transfer torque in asymmetric spin valves can vanish in non-collinear magnetic configurations, and such a non-standard behavior of the torque is generally associated with a non-monotonic angular dependence of the giant magnetoresistance, with a global minimum at a non-collinear magnetic configuration.
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