Variation of structural, magnetic and transport properties in   RE0.7Sr0.3MnO3 granular perovskites

doi:10.1016/S0038-1098(01)00160-0

CORC > 北京大学 > 化学与分子工程学院

	Variation of structural, magnetic and transport properties in RE0.7Sr0.3MnO3 granular perovskites
	Huang, YH ; Yan, CH ; Wang, ZM ; Liao, CS ; Xu, GX
刊名	固体通讯
	2001
关键词	magnetically ordered materials grain boundaries electronic transport COLOSSAL MAGNETORESISTANCE GIANT MAGNETORESISTANCE MANGANITES SIZE LA0.7SR0.3MNO3 LA1-XSRXMNO3 TRANSITIONS DISORDER
DOI	10.1016/S0038-1098(01)00160-0
英文摘要	Granular perovskite family RE0.7Sr0.3MnO3 (RE = rare earth except Ce and Sc) were prepared by thermal decomposition of complex precursors. The effects of A-site rare earth elements on structural symmetry, magnetic and transport properties were systematically investigated. While RE is varied from La to Lu, the perovskite structure is distorted from rhombohedral to orthorhombic and finally to hexagonal symmetry for small rare earths. Meanwhile, the magnetic measurement shows a variation corresponding to the phase transition. Carrier mobility and magnetoresistance also strongly depend on the rare earth elements. Our results reveal that the tolerance factor r plays an important role in the structural distortion and grain boundary effect for the granular compounds. In addition, the band-bending effects are suggested to explain the discrepancy in the transport properties of this family. (C) 2001 Elsevier Science Ltd. All rights reserved.; Physics, Condensed Matter; SCI(E); 41; ARTICLE; 10; 541-546; 118
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/211880]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Huang, YH,Yan, CH,Wang, ZM,et al. Variation of structural, magnetic and transport properties in RE0.7Sr0.3MnO3 granular perovskites[J]. 固体通讯,2001.
APA	Huang, YH,Yan, CH,Wang, ZM,Liao, CS,&Xu, GX.(2001).Variation of structural, magnetic and transport properties in RE0.7Sr0.3MnO3 granular perovskites.固体通讯.
MLA	Huang, YH,et al."Variation of structural, magnetic and transport properties in RE0.7Sr0.3MnO3 granular perovskites".固体通讯 (2001).