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Superharmonic Long-Range Triplet Current in a Diffusive Josephson Junction

Caroline Richard, Manuel Houzet, Julia S. Meyer

DOI 10.1103/PhysRevLett.110.217004 · Physical Review Letters

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Abstract

We study the Josephson current through a long ferromagnetic bilayer in the diffusive regime. For noncollinear magnetizations, we find that the current-phase relation is dominated by its second harmonic, which corresponds to the long-range coherent propagation of two triplet pairs of electrons.

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