Thermal Conductivity Anisotropy in Superconducting $UPt_3$

A. Fledderjohann; P. J. Hirschfeld

doi:10.1016/0038-1098(95)00050-X

paper

Thermal Conductivity Anisotropy in Superconducting $U P t_{3}$

arXiv:cond-mat/9410087 · doi:10.1016/0038-1098(95)00050-X

Abstract

Recent thermal conductivity measurements on $U P t_{3}$ single crystals by Lussier et al. indicate the existence of a strong b--c anisotropy in the superconducting state. We calculate the thermal conductivity in various unconventional candidate states appropriate for the $U P t_{3}$ ``B phase" and compare with experiment, specifically the $E_{2 u}$ and $E_{1 g}$ $(1, i)$ states predicted in some Ginzburg-Landau analyses of the phase diagram. For the simplest realizations of these states over spherical or ellipsoidal Fermi surfaces, the normalized $E_{2 u}$ conductivity is found, surprisingly, to be completely isotropic. We discuss the effects of inelastic scattering and realistic Fermi surface anisotropy, and deduce constraints on the symmetry class of the $U P t_{3}$ ground state.

4 postscript pages, UFL1025

References in corpus (1)

The Order Parameter for the Superconducting Phases of UPt $_{3}$

Thermal Conductivity Anisotropy in Superconducting UPt3​

Abstract

References in corpus (1)

Cited by in corpus (13)

Thermal Conductivity Anisotropy in Superconducting $U P t_{3}$