Andreev current induced by ferromagnetic resonance
arXiv:1204.1491 · doi:10.1103/PhysRevLett.109.057002
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.
5 pages, 3 figures
References in corpus (5)
- Electrical detection of spin pumping due to the precessing magnetization of a single ferromagnet
- Spin dynamics in a superconductor / ferromagnet proximity system
- Voltage generation by ferromagnetic resonance
- Andreev billiards
- Tunnel barrier enhanced voltage signals generated by magnetization precession of a single ferromagnetic layer
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- Out-of-Equilibrium Spin Transport in Mesoscopic Superconductors
- Dynamic Magnetoelectric Effect in Ferromagnet-Superconductor Tunnel Junctions
- Non-linear spin torque, pumping and cooling in superconductor/ferromagnet systems