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arXiv · 1209.4229

Nodeless superconductivity in Ir$_{1-x}$Pt$_x$Te$_2$ with strong spin-orbital coupling

S. Y. Zhou·X. L. Li·B. Y. Pan·X. Qiu·J. Pan·X. C. Hong·Z. Zhang·A. F. Fang·N. L. Wang·S. Y. Li
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Abstract

The thermal conductivity $κ$ of superconductor Ir$_{1-x}$Pt$_{x}$Te$_2$ ($x$ = 0.05) single crystal with strong spin-orbital coupling was measured down to 50 mK. The residual linear term $κ_0/T$ is negligible in zero magnetic field. In low magnetic field, $κ_0/T$ shows a slow field dependence. These results demonstrate that the superconducting gap of Ir$_{1-x}$Pt$_{x}$Te$_2$ is nodeless, and the pairing symmetry is likely conventional s-wave, despite the existence of strong spin-orbital coupling and a quantum critical point.

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S. Y. Zhou, X. L. Li, B. Y. Pan, X. Qiu, J. Pan, X. C. Hong, Z. Zhang, A. F. Fang, N. L. Wang, S. Y. Li. 2013-07-23. Nodeless superconductivity in Ir$_{1-x}$Pt$_x$Te$_2$ with strong spin-orbital coupling. https://doi.org/10.1209/0295-5075%2F104%2F27010

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