Large spectral weight transfer in optical conductivity of SrTiO${}_3$ induced by intrinsic vacancies

Teguh C. Asmara, Xiao Wang, Iman Santoso +11

The optical conductivity (${\sigma }_1$) of SrTiO${}_3$ for various vacancies has been systematically studied using a combination of ultraviolet - vacuum ultraviolet (UV-VUV) reflectivit…