# Anomalous phase shift in a Josephson junction via an antiferromagnetic interlayer

## TL;DR

This paper predicts and investigates the anomalous phase shift in Josephson junctions with an antiferromagnetic interlayer, showing its dependence on spin-orbit coupling, magnetic moments, and Neel vector orientation, enabling control via supercurrent.

## Contribution

It introduces the concept of an anomalous phase shift in S/AF/S Josephson junctions influenced by Rashba spin-orbit coupling and interface magnetic moments, with potential for Neel vector control.

## Key findings

- Anomalous phase shift depends on SO-coupling and sublattice magnetization.
- Existence of stable and metastable phase branches.
- Control of Neel vector orientation via supercurrent.

## 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.