Magnetic resonance in a singlet-triplet Josephson junction
Lars Elster, Manuel Houzet, Julia S. Meyer
DOI 10.1103/PhysRevB.93.104519 · Physical Review B
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Abstract
We study a singlet-triplet Josephson junction between a conventional s-wave superconductor and an unconventional px-wave superconductor. The Andreev spectrum of the junction yields a spontaneous magnetization in equilibrium. This allows manipulating the occupation of the Andreev levels using an ac Zeeman field. The induced Rabi oscillations manifest themselves as a resonance in the current-phase relation. For a circularly polarized magnetic field, we find a spin selection rule, yielding Rabi oscillations only in a certain interval of the superconducting phase difference.
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