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arXiv · 0712.1277

Spin-resolved crossed Andreev reflection in ballistic heterostructures

Mikhail S. Kalenkov·Andrei D. Zaikin
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Abstract

We theoretically analyze non-local effects in electron transport across three-terminal ballistic normal-superconducting-normal (NSN) structures with spin-active interfaces. Subgap electrons entering S-electrode from one N-metal may form Cooper pairs with their counterparts penetrating from another N-metal. This phenomenon of crossed Andreev reflection is highly sensitive to electron spins and yields a rich variety of properties of non-local conductance which we describe non-perturbatively at arbitrary interface transmissions, voltages and temperatures. Our results can be applied to hybrid structures with normal, ferromagnetic and half-metallic electrodes and can be directly tested in future experiments.

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Mikhail S. Kalenkov, Andrei D. Zaikin. 2007-12-08. Spin-resolved crossed Andreev reflection in ballistic heterostructures. https://doi.org/10.1016/j.physe.2007.05.019

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