Electrical transport and magnetoresistance in La2/3Ca1/3MnO3/BaZrO3 composites

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	Electrical transport and magnetoresistance in La2/3Ca1/3MnO3/BaZrO3 composites
	Gao, L ; Bai, LF ; Li, CS ; Liu, XH ; Wu, ZW ; Zheng, DN ; Lu, YF
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2012
卷号	522 页码:25
关键词	LOW-FIELD MAGNETORESISTANCE GRAIN-BOUNDARIES COLOSSAL MAGNETORESISTANCE TUNNEL-JUNCTIONS MANGANITES FILMS PERCOLATION
ISSN号	0925-8388
通讯作者	Lu, YF: NW Inst Nonferrous Met Res, POB 51, Xian 710016, Shaanxi, Peoples R China.
中文摘要	We report the results of electrical resistivity and magnetoresistance (MR) measurements carried out on La2/3Ca1/3MnO3/BaZrO3 composites prepared by solid state reaction method. The metal-to-insulator transition and the magnitude of magnetoresistance are significantly influenced by the content of BaZrO3, suggesting the presence of ionic diffusion between La2/3Ca1/3MnO3 and BaZrO3, although the dependence of the electrical resistivity as a function of La2/3Ca1/3MnO3 volume fraction can be roughly described by classical percolation conduction model. The conductive behavior above the metal-to-insulator transition temperature can be well explained by Mott's variable range hopping model. (C) 2012 Elsevier B. V. All rights reserved.
收录类别	SCI
资助信息	National Science Fund Program of China [50872115]
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/311004/36961]
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, L,Bai, LF,Li, CS,et al. Electrical transport and magnetoresistance in La2/3Ca1/3MnO3/BaZrO3 composites[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2012,522:25.
APA	Gao, L.,Bai, LF.,Li, CS.,Liu, XH.,Wu, ZW.,...&Lu, YF.(2012).Electrical transport and magnetoresistance in La2/3Ca1/3MnO3/BaZrO3 composites.JOURNAL OF ALLOYS AND COMPOUNDS,522,25.
MLA	Gao, L,et al."Electrical transport and magnetoresistance in La2/3Ca1/3MnO3/BaZrO3 composites".JOURNAL OF ALLOYS AND COMPOUNDS 522(2012):25.