Current patterns and magnetic impurities in time-reversal breaking superconductor

Abstract

We study the impurity effect in the time reversal symmetry ($\mathcal{T}$) breaking superconductor based on the Bogoliubov-de Gennes (BdG) equations. In $\mathcal{T}$-violating superconductors, spontaneous currents are induced around the impurity. The current patterns around the impurity reflect the structures of the Cooper pairs. We investigate impurity problem numerically for two kinds of $\mathcal{T}$ violating superconductors $(p_x\pm \mathrm{i}{p}_y$ and $d+\mathrm{i}s)$ and investigate the currents around the impurity. We also study the effects of the magnetic impurity in p-wave ($p_x\pm \mathrm{i}{p}_y$) superconductor, especially in view of the zero-energy crossing of energy levels related to the phase transition of the ground state.

18 pages

References in corpus (3)

• Time-Reversal Symmetry Breaking Superconductivity in Sr2RuO4
• Analysis of impurity-induced circular currents for the chiral superconductor Sr_{2}RuO_{4}
• Study on nonmagnetic impurities in the superconducting state of two-dimensional t-J model

Cited by in corpus (3)

• Single Impurity Effects in Multiband Superconductors with Different Sign Order Parameters
• Self-consistent study of Abelian and non-Abelian order in a two-dimensional topological superconductor
• Electronic structure and spontaneous internal field around non-magnetic impurities in spin-triplet chiral p-wave superconductors