Impurity induced density of states and residual transport in nonunitary superconductors

Abstract

We obtain general expressions for the residual density of states, electrical conductivity and thermal conductivity for non-unitary superconductors due to impurity scattering. We apply the results to the so-called `B phase' of PrOs4Sb12, which we describe using a non-unitary gap function derived from symmetry considerations. The conductivity tensor has inequivalent diagonal components due to off-axis nodal positions which may be detectable in experiments.

8 pages, 1 figure

References in corpus (2)

• Superconducting states in the tetrahedral compound PrOs4Sb12
• Mixed-parity superconductivity in centrosymmetric crystals

Cited by in corpus (4)

• Unconventional Superconductivity
• Nonunitary Superconductivity in Complex Quantum Materials
• 123Sb-NQR study of unconventional superconductivity in the filled skutterudite heavy-fermion compound PrOs4Sb12 under high pressure up to P = 3.82 GPa
• Field angle-dependent thermal conductivity in nodal superconuctors