Chiral d-wave superconductivity in the heavy-fermion compound CeIrIn_5

TL;DR

This paper proposes that the superconducting order parameter in CeIrIn_5 is consistent with chiral d-wave symmetry, based on thermal conductivity measurements that differ from those in CeCoIn_5.

Contribution

It introduces the possibility of chiral d-wave superconductivity in CeIrIn_5, expanding understanding of pairing symmetries in heavy-fermion superconductors.

Findings

Thermal conductivity measurements support chiral d-wave symmetry in CeIrIn_5.

Superconducting order parameter in CeIrIn_5 differs from CeCoIn_5.

Chiral d-wave symmetry explains experimental observations.

Abstract

Recent thermal conductivity measurements in the heavy-fermion compound CeIrIn_5 indicate that its superconducting order parameter is very different from CeCoIn_5. Here we show that these experiments are consistent with chiral d-wave symmetry.