Oxygen vacancies induced switchable and nonswitchable photovoltaic effects in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 sandwiched capacitors

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	Oxygen vacancies induced switchable and nonswitchable photovoltaic effects in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 sandwiched capacitors
	Gao, RL ; Yang, HW ; Chen, YS ; Sun, JR ; Zhao, YG ; Shen, BG
刊名	APPLIED PHYSICS LETTERS
	2014
卷号	104 期号:3
ISSN号	0003-6951
通讯作者	Gao, RL (reprint author), Chongqing Univ Sci & Technol, Sch Met & Mat Engn, Chongqing 401331, Peoples R China.
中文摘要	The short circuit photocurrent (I-sc) was found to be strongly dependent on the oxygen vacancies (V-Os) distribution in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 heterostructures. In order to manipulate the V-Os accumulated at either the Ag/Bi0.9La0.1FeO3 or the Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 interface by pulse voltages, switchable or nonswitchable photocurrent can be observed without or with changing the polarization direction. The sign of photocurrent could be independent of the direction of polarization when the variation of diffusion current and the modulation of the Schottky barrier at the Ag/Bi0.9La0.1FeO3 interface induced by oxygen vacancies are large enough to offset those induced by polarization. Our work provides deep insights into the nature of photovoltaic effects in ferroelectric films, and will facilitate the advanced design of switchable devices combining spintronic, electronic, and optical functionalities. (C) 2014 AIP Publishing LLC.
资助信息	National Basic Research of China; National Natural Science Foundation of China; Chinese Academy of Sciences; Beijing Municipal Natural Science Foundation
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/58931]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Gao, RL,Yang, HW,Chen, YS,et al. Oxygen vacancies induced switchable and nonswitchable photovoltaic effects in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 sandwiched capacitors[J]. APPLIED PHYSICS LETTERS,2014,104(3).
APA	Gao, RL,Yang, HW,Chen, YS,Sun, JR,Zhao, YG,&Shen, BG.(2014).Oxygen vacancies induced switchable and nonswitchable photovoltaic effects in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 sandwiched capacitors.APPLIED PHYSICS LETTERS,104(3).
MLA	Gao, RL,et al."Oxygen vacancies induced switchable and nonswitchable photovoltaic effects in Ag/Bi0.9La0.1FeO3/La0.7Sr0.3MnO3 sandwiched capacitors".APPLIED PHYSICS LETTERS 104.3(2014).