Polarity-field driven conductivity in SrTiO${}_3$/LaAlO${}_3$: a hybrid functional study

Sébastien Lemal, Nicholas C. Bristowe, Philippe Ghosez

The origin of the 2-dimensional electron system (2DES) appearing at the (001) interface of band insulators $\mathrm{SrTi}{\mathrm{O}}_3$ and $\mathrm{LaAl}{\mathrm{O}}_3$ has been rationalized in the framework of…