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arXiv · cond-mat/0611330

Nonlocal Andreev reflection at high transmissions

Mikhail S. Kalenkov·Andrei D. Zaikin
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Abstract

We analyze non-local effects in electron transport across three-terminal normal-superconducting-normal (NSN) structures. 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 -- combined with normal scattering at SN interfaces -- yields two different contributions to non-local conductance which we evaluate non-perturbatively at arbitrary interface transmissions. Both these contributions reach their maximum values at fully transmitting interfaces and demonstrate interesting features which can be tested in future experiments.

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Mikhail S. Kalenkov, Andrei D. Zaikin. 2007-05-25. Nonlocal Andreev reflection at high transmissions. https://doi.org/10.1103/physrevb.75.172503

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