paper

Signatures of odd-frequency correlations in the Josephson current of superconductor/ferromagnet hybrid junctions

arXiv:1504.04400 · doi:10.1103/PhysRevB.92.094509

Abstract

Contacting a bilayer ferromagnet with a singlet even-frequency superconductor allows for the realization of an effective triplet odd-frequency superconductor. In this work, we investigate the Josephson effect between superconductors with different symmetries (e.g. odd- versus even-frequency). In particular, we study the supercurrent flowing between two triplet odd-frequency superconducting leads through a weak singlet even-frequency superconductor. We show that the peculiar temperature dependence of the critical current below the superconducting transition of the weak superconductor is a signature of the competition between odd/odd-frequency and odd/even-frequency Josephson couplings.

8 pages, 6+1 Figures

References in corpus (2)

Cited by in corpus (6)