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Josephson current through a precessing spin
Chalmers University of Technology ; CNRS and Université Joseph Fourier, France.ORCID iD: 0000-0001-5551-8980
CNRS and Université Joseph Fourier, France ; Universites Paris 6 et 7, France.
INAC/SPSMS, France.
CNRS and Université Joseph Fourier, France.
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2009 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 150, 022027Article in journal (Refereed) Published
Abstract [en]

A study of the dc Josephson current between two superconducting leads in thepresence of a precessing classical spin is presented. The precession gives rise to a time-dependenttunnel potential which not only creates different tunneling probabilities for spin-up and spin-down quasiparticles, but also introduces a time-dependent spin-flip term. In particular, westudy the effects of the spin-flip term alone on the Josephson current between two spin-singletsuperconductors as a function of precession frequency and junction transparency. The systemdisplays a steady-state solution although the magnitude and nature of the current is indeedaffected by the precession frequency of the classical spin.

Place, publisher, year, edition, pages
2009. Vol. 150, 022027
National Category
Condensed Matter Physics
Research subject
Physics, Condensed Matter Physics
Identifiers
URN: urn:nbn:se:lnu:diva-63812DOI: 10.1088/1742-6596/150/2/022027OAI: oai:DiVA.org:lnu-63812DiVA: diva2:1095374
Conference
25th International Conference on Low Temperature Physics (LT25)
Available from: 2017-05-12 Created: 2017-05-12 Last updated: 2017-05-15Bibliographically approved

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Holmqvist, Cecilia
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