Nonlocal Andreev reflection at high transmissions

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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.
4 pages, 4 figures

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/130349

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0611330
 http://arxiv.org/abs/cond-mat/0611330
 Phys. Rev. B 75, 172503 (2007)
 doi:10.1103/PhysRevB.75.172503

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arXiv