Spin transport and magnetoresistance in ferromagnet/superconductor/ferromagnet spin valves
Spin transport and magnetoresistance in ferromagnet/superconductor/ferromagnet spin valves
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2005
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Physical Review B ; 72 (2005). - 145510
Abstract
We consider spin transport and spin relaxation in superconductors using the quasiclassical theory of superconductivity. We include spin relaxation due to spin-orbit interaction as well as magnetic impurities, and show that the energy dependence of the spin-flip rate is different for these two mechanisms. In ferromagnetsuperconductor- ferromagnet systems made of Co and Al, interface resistances can be small compared to bulk resistances. This simplifies the description of transport in Co/Al/Co spin valves, for which we numerically calculate the temperature and Al length dependence of the magnetoresistance.
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MORTEN, Jan Petter, Arne BRATAAS, Wolfgang BELZIG, 2005. Spin transport and magnetoresistance in ferromagnet/superconductor/ferromagnet spin valves. In: Physical Review B. 72, 145510. Available under: doi: 10.1103/PhysRevB.72.014510BibTex
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