Triplet Josephson Effect with Magnetic Feedback in a Superconductor-Ferromagnet Heterostructure
V. Braude, Ya. M. Blanter
DOI 10.1103/PhysRevLett.100.207001 · Physical Review Letters
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Abstract
We study the 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 ωJ. At intermediate frequencies, the periodicity in ωJt may be lost.
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