Asymmetric electrical properties in Pt/Ba0.5Sr0.5Ti0.99Co0.01O3/Nb-doped SrTiO3 capacitors

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	Asymmetric electrical properties in Pt/Ba0.5Sr0.5Ti0.99Co0.01O3/Nb-doped SrTiO3 capacitors
	Liu, WF ; Wang, SY ; Wang, C
刊名	PHYSICA B-CONDENSED MATTER
	2011
卷号	406 期号:18 页码:3406
关键词	CHEMICAL-VAPOR-DEPOSITION THIN-FILMS CONDUCTION MECHANISM IRO2 ELECTRODES LEAKAGE CURRENT IMPRINT RESISTANCE
ISSN号	0921-4526
通讯作者	Wang, SY: Tianjin Normal Univ, Coll Phys & Elect Informat Sci, Tianjin 300387, Peoples R China.
中文摘要	Ba0.5Sr0.5Ti0.99Co0.01O3 (BSTC) thin films have been fabricated with pulsed laser deposition on Nb-doped SrTiO3 (STN) substrate. In Pt/BSTC/STN capacitor, we systematically investigated the capacitance, leakage current and polarization versus bias voltage characteristics, and found that curves of capacitance versus voltage and leakage current versus voltage were not symmetric, and polarization hysteresis loop exhibited large relaxation of the remnant polarization at negatively poled state. A detailed analysis of capacitance data demonstrated a difference of the built-in voltage between top Pt/BSTC interface (V-b,V-t=2.5 V) and bottom BSTC/STN interface (V-b,V-b=1.1 V). Such different built-in voltages lead to the presence of an internal electric field, which results in asymmetric electric characteristics in Pt/BSTC/STN capacitor. (C) 2011 Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	National Natural Science Foundation of China [11004148]; Natural Science Foundation of Tianjin [11JCYBJC02700, 11JCZDJC21800]; Research Foundation of Tianjin Education Council [20090308]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/33999]
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	Liu, WF,Wang, SY,Wang, C. Asymmetric electrical properties in Pt/Ba0.5Sr0.5Ti0.99Co0.01O3/Nb-doped SrTiO3 capacitors[J]. PHYSICA B-CONDENSED MATTER,2011,406(18):3406.
APA	Liu, WF,Wang, SY,&Wang, C.(2011).Asymmetric electrical properties in Pt/Ba0.5Sr0.5Ti0.99Co0.01O3/Nb-doped SrTiO3 capacitors.PHYSICA B-CONDENSED MATTER,406(18),3406.
MLA	Liu, WF,et al."Asymmetric electrical properties in Pt/Ba0.5Sr0.5Ti0.99Co0.01O3/Nb-doped SrTiO3 capacitors".PHYSICA B-CONDENSED MATTER 406.18(2011):3406.