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arXiv · 1907.06208

Anomalous phase shift in a Josephson junction via an antiferromagnetic interlayer

D. S. Rabinovich·I. V. Bobkova·A. M. Bobkov
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Abstract

The anomalous ground state phase shift in S/AF/S Josephson junctions in the presence of the Rashba SO-coupling is predicted and numerically investigated. It is found to be a consequence of the uncompensated magnetic moment at the S/AF interfaces. The anomalous phase shift exhibits a strong dependence on the value of the SO-coupling and the sublattice magnetization with the simultaneous existence of stable and metastable branches. It depends strongly on the orientation of the Neel vector with respect to the S/AF interfaces via the dependence on the orientation of the interface uncompensated magnetic moment, what opens a way to control the Neel vector by supercurrent in Josephson systems.

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D. S. Rabinovich, I. V. Bobkova, A. M. Bobkov. 2019-07-14. Anomalous phase shift in a Josephson junction via an antiferromagnetic interlayer. https://doi.org/10.1103/physrevresearch.1.033095

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