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Transport through ferromagnet/superconductor interfaces

Zhigang Jiang·Jose Aumentado·Wolfgang Belzig·Venkat Chandrasekhar
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Abstract

The differential resistance of submicron-size ferromagnet/superconductor interface structures shows asymmetries as a function of the current through the ferromagnet/superconductor interface. These asymmetries are a consequence of spin-polarized electron transport from the ferromagnet to the superconductor, coupled with the Zeeman-splitting of the superconducting quasiparticle density of states. They are sensitive to the orientation of the magnetization of the ferromagnet, as the magnetic field required to spin-split the quasiparticle density of states can be provided by the ferromagnetic element itself.

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Zhigang Jiang, Jose Aumentado, Wolfgang Belzig, Venkat Chandrasekhar. 2003-11-18. Transport through ferromagnet/superconductor interfaces. https://arxiv.org/abs/cond-mat/0311334

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