Impurity induced density of states and residual transport in nonunitary superconductors

T. R. Abu Alrub; S. H. Curnoe

doi:10.1103/physrevb.76.184511

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arXiv · 0708.0217

Impurity induced density of states and residual transport in nonunitary superconductors

T. R. Abu Alrub·S. H. Curnoe

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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.

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T. R. Abu Alrub, S. H. Curnoe. 2007-11-12. Impurity induced density of states and residual transport in nonunitary superconductors. https://doi.org/10.1103/physrevb.76.184511

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