Field dependence of the vortex structure in chiral p-wave superconductors

TL;DR

This study investigates how vortex structures differ in chiral p-wave superconductors, revealing the role of induced chiral components and their impact on local density of states and free energy, with implications for understanding Sr2RuO4.

Contribution

It provides a detailed analysis of vortex structures in chiral p-wave superconductors using quasiclassical theory, highlighting the significance of induced chiral components.

Findings

Induced opposite chiral component significantly influences vortex structure.

Zero-energy density of states exhibits H^{1/2}-behavior at higher fields.

Results aid in understanding vortex states in Sr2RuO4.

Abstract

To investigate the different vortex structure between two chiral pairing p_x +(-) i p_y, we calculate the pair potential, the internal field, the local density of states, and free energy in the vortex lattice state based on the quasiclassical Eilenberger theory, and analyze the magnetic field dependence. The induced opposite chiral component of the pair potential plays an important role in the vortex structure. It also produces H^{1/2}-behavior of the zero-energy density of states at higher field. These results are helpful when we understand the vortex states in Sr2RuO4.