Identification of transverse spin currents in noncollinear magnetic structures
arXiv:cond-mat/0405610 · doi:10.1103/PhysRevLett.93.256602
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.
4 pages, Submitted to Physical Review Letters