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arXiv · 0712.2814

Proximity effect-assisted absorption of spin currents in superconductors

Jan Petter Morten·Arne Brataas·Gerrit E. W. Bauer·Wolfgang Belzig·Yaroslav Tserkovnyak
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Abstract

The injection of pure spin current into superconductors by the dynamics of a ferromagnetic contact is studied theoretically. Taking into account suppression of the order parameter at the interfaces (inverse proximity effect) and the energy-dependence of spin-flip scattering, we determine the temperature-dependent ferromagnetic resonance linewidth broadening. Our results agree with recent experiments in Nb|permalloy bilayers [C. Bell et al., arXiv:cond-mat/0702461].

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Jan Petter Morten, Arne Brataas, Gerrit E. W. Bauer, Wolfgang Belzig, Yaroslav Tserkovnyak. 2007-12-17. Proximity effect-assisted absorption of spin currents in superconductors. https://doi.org/10.1209/0295-5075%2F84%2F57008

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