MIRONOV, S.; MEL'NIKOV, A; BUZDIN, A.

doi:10.1063/1.5037074

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http://creativecommons.org/licenses/by-nc-sa/

MIRONOV, S.
Institute for Physics of Microstructures of the RAS

MEL'NIKOV, A
Institute for Physics of Microstructures of the RAS
Lobachevsky State University [Nizhni Novgorod]

BUZDIN, A.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Department of Materials Science and Metallurgy [Cambridge University] [DMSM]
Sechenov First Moscow State Medical University

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Article de revue

Este ítem está publicado en

Applied Physics Letters. 2018-07-09, vol. 113, n° 2, p. 022601 (1-5)

American Institute of Physics

Resumen en inglés

The spread of the Cooper pairs into the ferromagnet in proximity coupled superconductor-ferromagnet (SF) structures is shown to cause a strong inverse electromagnetic phenomenon, namely, the long-range transfer of the magnetic field from the ferromagnet to the superconductor. Contrary to the previously investigated inverse proximity effect resulting from the spin polarization of superconducting surface layer, the characteristic length of the above inverse electrodynamic effect is of the order of the London penetration depth, which usually much larger than the superconducting coherence length. The corresponding spontaneous currents appear even in the absence of the stray field of the ferromagnet and are generated by the vector-potential of magnetization near the S/F interface and they should be taken into account at the design of the nanoscale S/F devices. Similarly to the well-known Aharonov-Bohm effect, the discussed phenomenon can be viewed as a manifestation of the role of vector potential in quantum physics.< Leer menos

DOI

http://dx.doi.org/10.1063/1.5037074

Proyecto europeo

NANOSCALE COHERENT HYBRID DEVICES FOR SUPERCONDUCTING QUANTUM TECHNOLOGIES

Proyecto ANR

Control de courants supraconducteurs via des effets de spin et de champ: fondements pour une électronique non conventionnelle - ANR-15-CE24-0008
Manipulation optique de quanta de flux individuels dans les supraconducteurs et applications - ANR-17-CE30-0018

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