The thermal conductivity κ of the superconductor Ir1−xPtxTe2 (x = 0.05) single crystal with strong spin-orbital coupling was measured down to 50 mK. The residual linear term κ0/T is negligible in zero magnetic field. In low magnetic field, κ0/T shows a slow field dependence. These results demonstrate that the superconducting gap of Ir1−xPtxTe2 is nodeless, and the pairing symmetry is likely a conventional s-wave, despite the existence of strong spin-orbital coupling and a quantum critical point.

A proximity effect of spin orbit coupling (SOC) is proposed in nonmagnetic metal/ferromagnet (NM/FM) bilayers by extending the Crépieux-Bruno (CB) theory. We demonstrate that over 1000% enhancement of the SOC strength can be realized based on this effect (Pt/FM bilayers) and it brings greatly enhanced anomalous Hall effect and anomalous Nernst effect. This work could help maximize the performance of magnetic transport property for the spintronics device using NM/FM as the key structure.