Proximity-effect-assisted decay of spin currents in superconductors

J. P. Morten; A. Brataas; G. E.W. Bauer; W. Belzig; Y. Tserkovnyak

doi:10.1209/0295-5075/84/57008

Proximity-effect-assisted decay of spin currents in superconductors

J. P. Morten, A. Brataas, G. E.W. Bauer, W. Belzig, Y. Tserkovnyak

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The injection of pure spin current into superconductors by the dynamics of a ferromagnetic contact is studied theoretically. Taking into account the 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 compare well with recent experiments in Nb|permalloy bilayers (Bell C. et al., Phys. Rev. Lett., 100 (2008) 047002).

Original language	English
Article number	57008
Journal	EPL
Volume	84
Issue number	5
DOIs	https://doi.org/10.1209/0295-5075/84/57008
Publication status	Published - 2008
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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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 the 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 compare well with recent experiments in Nb|permalloy bilayers (Bell C. et al., Phys. Rev. Lett., 100 (2008) 047002).",

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AU - Brataas, A.

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AU - Belzig, W.

AU - Tserkovnyak, Y.

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AB - The injection of pure spin current into superconductors by the dynamics of a ferromagnetic contact is studied theoretically. Taking into account the 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 compare well with recent experiments in Nb|permalloy bilayers (Bell C. et al., Phys. Rev. Lett., 100 (2008) 047002).

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Proximity-effect-assisted decay of spin currents in superconductors

Abstract

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