Dynamics of photo-generated non-equilibrium electronic states in Ar${}^{+}$ ion irradiated SrTiO${}_3$

Dushyant Kumar, Z. Hossain, R. C. Budhani

A metallic surface is realized on stoichiometric and insulating (100) SrTiO${}_3$ by Ar${}^{+}$ - ion irradiation. The sheet carrier density and Hall mobility of the layer are $\sim$$4.0…