Crossed Andreev reflection in diffusive contacts

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dc.creatorBrinkman, A.
dc.creatorGolubov, A. A.
dc.date2006-11-06
dc.date.accessioned2026-07-07T07:36:13Z
dc.date.available2026-07-07T07:36:13Z
dc.descriptionCrossed Andreev reflection in multiterminal structures in the diffusive regime is addressed within the quasiclassical Keldysh-Usadel formalism. The elastic cotunneling and crossed Andreev reflection of quasiparticles give nonlocal currents and voltages (depending on the actual biasing of the devices) by virtue of the induced proximity effect in the normal metal electrodes. The magnitude of the nonlocal processes is found to scale with the square of the barrier transparency and to decay exponentially with interface spacing. Nonlocal cotunneling and crossed Andreev conductances are found to contribute equally to the nonlocal current, which is of relevance to the use of normal metal-superconducting heterostructures as sources of entanglement.
dc.identifierhttps://arxiv.org/abs/cond-mat/0611144
dc.identifierhttp://arxiv.org/abs/cond-mat/0611144
dc.identifierPhys. Rev. B 74, 214512 (2006)
dc.identifierdoi:10.1103/PhysRevB.74.214512
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/120353
dc.subjectSuperconductivity
dc.subjectMesoscale and Nanoscale Physics
dc.titleCrossed Andreev reflection in diffusive contacts
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