Andreev Current Induced by Ferromagnetic Resonance

Caroline Richard; Manuel Houzet; Julia S. Meyer

doi:10.1103/PhysRevLett.109.057002

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Andreev Current Induced by Ferromagnetic Resonance

Caroline Richard, Manuel Houzet, Julia S. Meyer

DOI 10.1103/PhysRevLett.109.057002 · Physical Review Letters

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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.

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.	—	Pressure not reported	unknown