Josephson current through a precessing spin
Paper in proceedings, 2009

A study of the dc Josephson current between two superconducting leads in the presence of a precessing classical spin is presented. The precession gives rise to a time-dependent tunnel 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, we study the effects of the spin-flip term alone on the Josephson current between two spin-singlet superconductors as a function of precession frequency and junction transparency. The system displays a steady-state solution although the magnitude and nature of the current is indeed affected by the precession frequency of the classical spin.


Cecilia Holmqvist

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Sofian Teber

Manuel Houzet

Denis Feinberg

Mikael Fogelström

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Journal of Physics: Conference Series

Vol. 150 022027-

Subject Categories

Condensed Matter Physics

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