interface*

We study the superconductor-to-insulator phase diagram of the (111) interface between the two band-insulators: LaAlO₃ and SrTiO₃. This interface has a two dimensional six-fold crystalline structure, as recently detected in the magneto-transport properties [1]. It has also been predicted to host exotic electronic orders and exhibits correlation between superconductivity and spin-orbit interaction [2]. We tune the carrier density deep into the insulating state and studied the magneto-transport properties. Our data are analyzed in the framework of superconducting fluctuations within the insulating state.
[1] P. K. Rout et al. Physical Review B 95 (24), 241107 (2017)
[2] P. K. Rout et al. arXiv preprint arXiv:1706.01717 (Accepted in Phys. Rev. Lett.)