Review of photoresponsive properties at SrTiO_3-based heterointerfaces  

作　　者：Hong Yan Zhaoting Zhang Shuanhu Wang Kexin Jin 闫虹;张兆亭;王拴虎;金克新(Shaanxi Key Laboratory of Condensed Matter Structures and Properties, School of Science, Northwestern Polytechnical University)

机构地区：Shaanxi Key Laboratory of Condensed Matter Structures and Properties, School of Science, Northwestern Polytechnical University, Xi＇ an 710072, China

出　　处：《Chinese Physics B》2018年第11期226-234,共9页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.51572222 and 11604265);Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University,China(Grant No.CX201836)

摘　　要：The two-dimensional electron gas at SrTiO3-based heterointerfaces has received a great deal of attention in recent years owing to their potential for the exploration of emergent physics and the next generation of electronics. One of the most fascinating aspects in this system is that the light, as a powerful external perturbation, can modify its transport properties. Recent studies have reported that SrTiO3-based heterointerfaces exhibit the persistent photoconductivity and can be tuned by the surface and interface engineering. These researches not only reveal the intrinsic physical mechanisms in the photoresponsive process, but also highlight the ability to be used as a tool for novel all-oxide optical devices. This review mainly contraposes the studies of photoresponse at SrTiO3-based heterointerfaces.The two-dimensional electron gas at SrTiO_3-based heterointerfaces has received a great deal of attention in recent years owing to their potential for the exploration of emergent physics and the next generation of electronics. One of the most fascinating aspects in this system is that the light, as a powerful external perturbation, can modify its transport properties. Recent studies have reported that SrTiO3-based heterointerfaces exhibit the persistent photoconductivity and can be tuned by the surface and interface engineering. These researches not only reveal the intrinsic physical mechanisms in the photoresponsive process, but also highlight the ability to be used as a tool for novel all-oxide optical devices. This review mainly contraposes the studies of photoresponse at SrTiO_3-based heterointerfaces.

关 键 词：complex oxides LaAlO3/SrTiO3 heterointerfaces two-dimensional electron gas persistent pho-toconductivity （PPC） 

分 类 号：O4[理学—物理]