We present the gate voltage (V_g) dependence of the superconducting properties and the spin-orbit interaction in (111) oriented LaAlO₃/SrTiO₃ interface [1]. Superconductivity is observed in a dome-shaped region in the carrier density-temperature phase diagram with the maxima of superconducting transition temperature T_c and the upper critical fields lying at the same V_g. The spin-orbit interaction determined from the superconducting parameters and confirmed by weak-antilocalisation measurements follows the same gate voltage dependence as T_c. The correlation between superconductivity and spin-orbit interaction as well as the enhancement of parallel upper critical field, well beyond the Chandrasekhar-Clogston limit suggest that superconductivity and the spin-orbit interaction are linked in a non-trivial fashion.

[1] P. K. Rout, E. Maniv, and Y. Dagan, arXiv:1706.01717 (Accepted in Phys. Rev. Lett.).