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arXiv · 1005.3426

Non-local spin-sensitive electron transport in diffusive proximity heterostructures

Mikhail S. Kalenkov·Andrei D. Zaikin
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Abstract

We formulate a quantitative theory of non-local electron transport in three-terminal disordered ferromagnet-superconductor-ferromagnet structures. We demonstrate that magnetic effects have different implications: While strong exchange field suppresses disorder-induced electron interference in ferromagnetic electrodes, spin-sensitive electron scattering at superconductor-ferromagnet interfaces can drive the total non-local conductance negative at sufficiently low energies. At higher energies magnetic effects become less important and the non-local resistance behaves similarly to the non-magnetic case. Our predictions can be directly tested in future experiments on non-local electron transport in hybrid FSF structures.

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Mikhail S. Kalenkov, Andrei D. Zaikin. 2010-05-19. Non-local spin-sensitive electron transport in diffusive proximity heterostructures. https://doi.org/10.1103/physrevb.82.024522

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