Review of photoresponsive properties at SrTiO3-based heterointerfaces
Yan Hong, Zhang Zhaoting, Wang Shuanhu, Jin Kexin
       

(color online) (a) The photoinduced relative change in the resistance as a function of temperature. The inset shows that resistance vs. temperature curve of STO single crystals under the light irradiation. The solid line is the best fit to the data.[58] (b) Carrier density of the annealed sample before and after illumination. After the illumination, the sample was kept in the dark.[59]