Nuclear magnetic relaxation rate in the vortex state of a chiral p-wave superconductor

Abstract

The site-selective nuclear spin–lattice relaxation rate T1−1 is theoretically studied inside a vortex core in a chiral p-wave superconductor within the framework of the quasiclassical theory of superconductivity. It is found that T1−1 at the vortex center depends on the sense of the chirality relative to the sense of the magnetic field. Our numerical result shows a characteristic difference in T1−1 between the two chiral states, k̄x+ik̄y and k̄x−ik̄y under the magnetic field.