Triplet Josephson effect with magnetic feedback

Details Triplet Josephson effect with magnetic feedback Triplet Josephson effect with magnetic feedback

2007-06-12

arxiv.org/abs/0706.1746v2

Physics

Condensed Matter

Superconductivity

4 pages, 3 figures

Scientific paper

We study AC Josephson effect in a superconductor-ferromagnet heterostructure with a variable magnetic configuration. The system supports triplet proximity correlations whose dynamics is coupled to the magnetic dynamics. This feedback dramatically modifies the behavior of the junction. The current-phase relation becomes double-periodic at both very low and high Josephson frequencies $\omega_J$. At intermediate frequencies, the periodicity in $\omega_J t$ may be lost.

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