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arXiv · 1204.1491

Andreev current induced by ferromagnetic resonance

Caroline Richard·Manuel Houzet·Julia S. Meyer
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Abstract

We study charge transport through a metallic dot coupled to a superconducting and a ferromagnetic lead with a precessing magnetization due to ferromagnetic resonance. Using the quasiclassical theory, we find that the magnetization precession induces a dc current in the subgap regime even in the absence of a bias voltage. This effect is due to the rectification of the ac spin currents at the interface with the ferromagnet; it exists in the absence of spin current in the superconductor. When the dot is strongly coupled to the superconductor, we find a strong enhancement in a wide range of parameters as compared to the induced current in the normal state.

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Caroline Richard, Manuel Houzet, Julia S. Meyer. 2012-04-06. Andreev current induced by ferromagnetic resonance. https://doi.org/10.1103/physrevlett.109.057002

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