Temperature dependence of the ferroelectric and dielectric properties of the Ba0.5Sr0.5TiO3/La0.67Sr0.33MnO3 heterostructure

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	Temperature dependence of the ferroelectric and dielectric properties of the Ba0.5Sr0.5TiO3/La0.67Sr0.33MnO3 heterostructure
	Miao, J ; Yang, H ; Hao, W ; Yuan, J ; Xu, B ; Qiu, XQ ; Cao, LX ; Zhao, BR
刊名	JOURNAL OF PHYSICS D-APPLIED PHYSICS
	2005
卷号	38 期号:1 页码:5
关键词	(BA0.5SR0.5)TIO3 THIN-FILMS ELECTRICAL-PROPERTIES PHASE-TRANSITION THICKNESS TUNABILITY CAPACITORS ELECTRODES BEHAVIOR STRESS
ISSN号	0022-3727
通讯作者	Miao, J (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Superconductiv, POB 603, Beijing 100080, Peoples R China.
中文摘要	A ferroelectric and colossal-magnetoresistant material with a Ba0.5Sr0.5TiO3 (BST)/La0.67Sr0.33 MnO3 (LSMO) heterostructure was deposited epitaxially on (001) LaAlO3 substrates through pulsed laser deposition. Measurements of the magnetic and ferroelectric properties show no obvious degradation of the LSMO layer after BST film deposition. For the BST film, as the temperature decreases from 300 to 20 K, both the remanent polarization and the coercive field increase monotonously up to 5.7 muC cm(-2) and 63.7 kV cm(-1) respectively. Meanwhile.. the temperature dependence of the spontaneous polarization shows a second-order ferroelectric phase transition, and the Curie temperature is estimated to be about 220 K. Furthermore, in the temperature range from 20 to 300 K, the dielectric constant (E = 0) and the dielectric tunability (E 200 kV cm(-1)) exhibit similar temperature dependences., and show maximum values of 1252 and 45.3 % at 200 K, respectively.
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/44773]
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	Miao, J,Yang, H,Hao, W,et al. Temperature dependence of the ferroelectric and dielectric properties of the Ba0.5Sr0.5TiO3/La0.67Sr0.33MnO3 heterostructure[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2005,38(1):5.
APA	Miao, J.,Yang, H.,Hao, W.,Yuan, J.,Xu, B.,...&Zhao, BR.(2005).Temperature dependence of the ferroelectric and dielectric properties of the Ba0.5Sr0.5TiO3/La0.67Sr0.33MnO3 heterostructure.JOURNAL OF PHYSICS D-APPLIED PHYSICS,38(1),5.
MLA	Miao, J,et al."Temperature dependence of the ferroelectric and dielectric properties of the Ba0.5Sr0.5TiO3/La0.67Sr0.33MnO3 heterostructure".JOURNAL OF PHYSICS D-APPLIED PHYSICS 38.1(2005):5.