Magnetization process in a chiral p-wave superconductor with multi-domains

TL;DR

This study uses simulations based on Ginzburg-Landau theory to explore how magnetic fields influence domain structures in chiral p-wave superconductors, revealing vortex formation and domain wall dynamics.

Contribution

It provides new insights into the magnetization process and domain evolution in multi-domain chiral p-wave superconductors through detailed simulation analysis.

Findings

Core-less vortices penetrate through domain walls forming vortex sheets.

Domain walls move under increasing magnetic fields, leading to single domain states.

Unstable domains shrink and vanish as magnetic field strength increases.

Abstract

A simulation study for the magnetization process is performed for the multi-domain state in a chiral p-wave superconductor, using the time-dependent Ginzburg-Landau theory. The external field penetrates inside as core-less vortices through the domain wall, forming the vortex sheet structure. We find that, with increasing magnetic fields, the domain walls move so that the unstable domains shrink to vanish. Therefore, the single domain structure is realized at higher fields.