Abstract
The spin transfer in biased disordered ferromagnet (F)–normal metal (N) systems is calculated by the diffusion equation. For F1-N2-F2 and N1-F1-N2-F2-N3 spin valves, the effect of spin-flip processes in the normal metal and ferromagnet parts are obtained analytically. Spin-flip in the center metal N2 reduces the spin-transfer, whereas spin-flip in the outer normal metals N1 and N3 can increase it by effectively enhancing the spin polarization of the device.
- Received 18 July 2002
DOI:https://doi.org/10.1103/PhysRevB.66.224424
©2002 American Physical Society
