Enhanced magnetoresistance of multilayered thin films prepared by pulsed laser deposition

IMR OpenIR

	Enhanced magnetoresistance of multilayered thin films prepared by pulsed laser deposition
	Y. Yang; G. L. Yuan; L. Zhou; J. M. Liu; Z. G. Liu
	2003
发表期刊	Materials Letters
ISSN	0167-577X
卷号	57 期号:18 页码:2693-2697
摘要	La0.7Sr0.3MnO3/iron oxide multilayered thin films are prepared by alternatively laser-ablating a La0.7Sr0.3MnO3 (LSMO) ceramic and pure Fe targets on silicon wafers. The electro- and magneto-transport properties and low-field magnetoresistance (LFMR) of the as-grown multilayers of different iron oxide thickness are evaluated. It is revealed that the ultra-thin iron oxide layer as the insulator separating the conductive LSMO layers benefits to the enhanced magnetoresistance, which decreases, however, with further increasing of the iron oxide layer thickness. It is suggested that the iron oxide layers between LSMO act as the insulator for electron tunneling. The spin-polarized tunneling is considered as the probable conduction mechanism. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china. chinese acad sci, int ctr mat phys, shenyang, peoples r china.;liu, jm (reprint author), nanjing univ, solid state microstruct lab, hankou rd 22, nanjing 210093, peoples r china
关键词	Multilayered Thin Film Magnetoresistance Pulsed Laser Deposition Low-field Magnetoresistance Colossal Magnetoresistance Polycrystalline Manganites Phase
URL	查看原文
WOS记录号	WOS:000182776500016
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36122
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Yang,G. L. Yuan,L. Zhou,et al. Enhanced magnetoresistance of multilayered thin films prepared by pulsed laser deposition[J]. Materials Letters,2003,57(18):2693-2697.
APA	Y. Yang,G. L. Yuan,L. Zhou,J. M. Liu,&Z. G. Liu.(2003).Enhanced magnetoresistance of multilayered thin films prepared by pulsed laser deposition.Materials Letters,57(18),2693-2697.
MLA	Y. Yang,et al."Enhanced magnetoresistance of multilayered thin films prepared by pulsed laser deposition".Materials Letters 57.18(2003):2693-2697.