Triplet superconductivity in the skutterudite PrOs_4Sb_12

TL;DR

This paper investigates triplet superconductivity in PrOs_4Sb_12, proposing nodal order parameters consistent with experimental data and analyzing quasiparticle states and thermal conductivity.

Contribution

It introduces specific nodal order parameters for PrOs_4Sb_12's phases, aligning theoretical models with experimental observations.

Findings

Proposed nodal order parameters match experimental thermal conductivity data.

Derived quasiparticle density of states within the quasiclassical approximation.

Analyzed thermal conductivity behavior in the superconductor.

Abstract

There is mounting evidence for triplet superconductivity in the recently discovered skutterudite compound PrOs_4Sb_12. In this work, we propose nodal order parameters for the A- and B-phases of this superconductor which are consistent with angle dependent magnetothermal conductivity measurements and with low-temperature thermal conductivity data in the range T > 150 mK. The quasiparticle density of states and the thermal conductivity kappa_zz are derived within the quasiclassical approximation.