$\mu$SR and magnetometry study of superconducting 5% Pt doped IrTe$_2$

TL;DR

This study uses magnetometry and muon spin rotation to analyze the superconducting properties of 5% Pt-doped IrTe$_2$, revealing conventional s-wave superconductivity with no signs of exotic behavior.

Contribution

It provides the first combined magnetometry and $$SR analysis of Ir$_{0.95}$Pt$_{0.05}$Te$_2$, demonstrating conventional BCS superconductivity.

Findings

Superfluid density fits a conventional s-wave model.

Superconductivity is consistent with weak-coupling BCS theory.

No evidence of exotic or unconventional superconductivity.

Abstract

We present magnetometry and muon spin rotation ($\mu$SR) measurements of the superconducting dichalcogenide Ir$_{0.95}$Pt$_{0.05}$Te$_2$. From both sets of measurements we calculate the penetration depth and thence superfluid density as a function of temperature. The temperature dependence of the superfluid densities from both sets of data indicate fully gapped superconductivity that can be fit to a conventional s-wave model and yiel fitting parameters consistent with a BCS weak coupling superconductor. We therefore see no evidence for exotic superconductivity in Ir$_{0.95}$Pt$_{0.05}$Te$_2$.