Strain-induced topological phase transition at (111) SrTiO${}_3$-based heterostructures

Mattia Trama, Carmine Antonio Perroni, Vittorio Cataudella

The quasi-two-dimensional electronic gas at the (111) SrTiO${}_3$-based heterostructure interfaces is described by a multi-band tight-binding model providing electronic bands in agre…