Identification of transverse spin currents in noncollinear magnetic structures
Jianwei Zhang, Peter M Levy, Shufeng Zhang, Vladimir Antropov
Abstract
We show that the transverse components of spin current in a ferromagnet is linked to an off diagonal spin component of the transmission matrix at interfaces;it has little to do with the mismatch of band structures between dissimilar metals. When we take account of this component,not considered in prior analyses, we find spin torque comes from a region of at lease 3 nm around an interface.
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