Fig. 4
From: Artificial two-dimensional polar metal by charge transfer to a ferroelectric insulator
First-principles calculations of the two-dimensional electron gas and polar displacements in LaAlO3/Ba0.5Sr0.5TiO3/SrTiO3 heterostructure. a Layer-resolved in-plane average charge density along the 〈001〉 direction. b Layer-resolved out-of-plane displacements of B-OII (red balls) and A-OI (green squares), respectively. c Structural guide of the supercell used in the calculations (only half of the structure used in the calculations is shown)
