METHODS OF PHYSICAL INVESTIGATION

Interplay of domain walls and the supercurrent in a topological Josephson junction

K. Turyshev^ab, Yu. Makhlin<sup>ba

a</sup> Landau Institute for Theoretical Physics, Chernogolovka, Moscow region, 142432 Russia
^b Condensed-Matter Physics Laboratory and Physics Department, HSE University, Moscow, 101000 Russia

Abstract: We consider an interferometer based on chiral Majorana and Dirac modes in a hybrid superconductor/ferromagnet/superconductor Josephson junction on top of a topological material. These one-dimensional bound chiral modes can carry Josephson current, which results in an unusual current-phase relation. Domain walls in the magnetic layer may influence the supercurrent. We demonstrate that the supercurrent depends on the distance between the domain walls, and on the other hand, it controls the interaction of the domain walls and thus the dynamics of the magnetic layer.


Accepted: 13.11.2024

DOI: 10.31857/S0370274X25010098

 English version: Journal of Experimental and Theoretical Physics Letters, 2025, 121:1, 53–57