Domain Walls in a Tetragonal Chiral p-Wave Superconductor

TL;DR

This paper analyzes the properties of domain walls in tetragonal chiral p-wave superconductors using Ginzburg-Landau theory, focusing on energy, magnetic induction jumps, and implications for Sr2RuO4.

Contribution

It provides a theoretical analysis of domain wall characteristics in chiral p-wave superconductors, including energy and magnetic effects, with relevance to experimental observations in Sr2RuO4.

Findings

Calculated domain wall energy and magnetic induction jumps.

Identified dependence on wall orientation and Ginzburg-Landau parameters.

Discussed implications for experimental detection in Sr2RuO4.

Abstract

Domain walls in a tetragonal chiral p-wave superconductors with broken time reversal symmetry are analyzed in the framework of the Ginsburg-Landau theory. The energy and the jump of the magnetic induction on the wall were determined for different types of walls as functions of the parameters of the Ginzburg-Landau theory and orientation of the domain wall with respect to the crystallographic axes. We discuss implications of the analysis for $Sr_{2}RuO_{4}$, where no stray magnetic fields from domain walls were detected experimentally.