Josephson current through a precessing spin

Holmqvist, CeciliaChalmers University of Technology ; CNRS and Université Joseph Fourier, France,Chalmers tekniska högskola,Chalmers University of Technology (författare)

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.

Teber, S.CNRS and Université Joseph Fourier, France ; Universites Paris 6 et 7, France (författare)
Houzet, M .INAC/SPSMS, France (författare)
Feinberg, D .CNRS and Université Joseph Fourier, France (författare)
Fogelström, Mikael,1963Chalmers University of Technology,Chalmers tekniska högskola(Swepub:cth)fogelstr (författare)
Chalmers University of Technology ; CNRS and Université Joseph Fourier, FranceChalmers tekniska högskola (creator_code:org_t)

Ingår i:Journal of Physics, Conference Series: IOP Publishing1501742-65881742-6596

Av författaren/redakt...: Holmqvist, Cecil ...; Teber, S.; Houzet, M .; Feinberg, D .; Fogelström, Mika ...

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