Nodeless superconductivity in Ir$_{1-x}$Pt$_x$Te$_2$ with strong   spin-orbital coupling
  The thermal conductivity $\kappa$ 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 $\kappa_0/T$ is negligible in zero magnetic field. In low magnetic field, $\kappa_0/T$ 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. 
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
cond-mat.supr-con cond-mat.str-el