Scaling Relations in the Triplet Superconductor PrOs4Sb12

TL;DR

This paper derives scaling relations for thermodynamics and thermal conductivity in the vortex state of PrOs4Sb12, aiming to support the existence of anisotropic gap functions in its superconducting phases.

Contribution

It introduces specific scaling relations for PrOs4Sb12's vortex state, providing a theoretical basis for experimental verification of its gap structure.

Findings

Derived scaling relations for thermodynamics and thermal conductivity.

Proposed experimental tests to confirm anisotropic gap functions.

Supports the presence of nodal superconductivity in PrOs4Sb12.

Abstract

Scaling relations are one of the hallmarks of nodal superconductivity since they contain information characteristic for gapless order parameters. In this paper we derive the scaling relations for the thermodynamics and the thermal conductivity in the vortex state of the A and B phases of the skutterudite PrOs4Sb12. Experimental confirmation of these scaling relations can provide further support for anisotropic gap functions which were previously considered for this material.