MEL'NIKOV, A. S.; SAMOKHVALOV, A. V.; KUZNETSOVA, S. M.; BUZDIN, Alexandre I.

doi:10.1103/PhysRevLett.109.237006

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Licencia de uso del documento

MEL'NIKOV, A. S.
Institute for Physics of Microstructures of the RAS

SAMOKHVALOV, A. V.
Institute for Physics of Microstructures of the RAS

KUZNETSOVA, S. M.
Institute for Physics of Microstructures of the RAS

Idioma

Article de revue

Este ítem está publicado en

Physical Review Letters. 2012-12-05, vol. 109, n° 23, p. 237006 (1-5)

American Physical Society

Resumen en inglés

We study peculiarities of proximity effect in clean superconductor -- ferromagnet structures caused by either spatial or momentum dependence of the exchange field. Even a small modulation of the exchange field along the quasiparticle trajectories is shown to provide a long range contribution to the supercurrent due to the specific interference of particle- and hole- like wave functions. The momentum dependence of the exchange field caused by the spin -- orbit interaction results in the long -- range superconducting correlations even in the absence of ferromagnetic domain structure and can explain the recent experiments on ferromagnetic nanowires.< Leer menos

Palabras clave en inglés

74.45.+c

Proximity effects

Andreev reflection

SN and SNS junctions

74.78.Na

Mesoscopic and nanoscale systems

85.25.Cp

Josephson devices

DOI

http://dx.doi.org/10.1103/PhysRevLett.109.237006

Proyecto europeo

New Century of Superconductivity: Ideas, Materials, Technologies

Orígen

Importado de Hal

Centros de investigación

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798