Spin transport and magnetoresistance in ferromagnet/superconductor/ferromagnet spin valves
Jan Petter Morten, Arne Brataas, Wolfgang Belzig
DOI 10.1103/PhysRevB.72.014510 · Physical Review B
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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 ferromagnet-superconductor-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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.26 | Pressure not reported | unknown |
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