Crystal structure and electronic transport property of perovskite manganese oxides with a fixed tolerance factor

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	Crystal structure and electronic transport property of perovskite manganese oxides with a fixed tolerance factor
	Sun, JR ; Rao, GH ; Liang, JK
刊名	APPLIED PHYSICS LETTERS
	1997
卷号	70 期号:14 页码:1900
关键词	MAGNETORESISTANCE
ISSN号	0003-6951
通讯作者	Sun, JR: CHINESE ACAD SCI,INST PHYS,POB 603,BEIJING 100080,PEOPLES R CHINA.
中文摘要	The structural and electronic transport properties of ABO(3)-type compounds La(2/3-x)R(x)Ca(1/3)MnO(3) (R=Pr, Nd, Sm, Eu, Gd, Tb, Dy, Y, Er, and Tm) with a fixed tolerance factor of t=0.91137 is studied. Similar structure deformation, characterized by the nearly constant average Mn-O, A-O distances and Mn-O-Mn bond angles, is observed in different compounds. The metal-semiconductor transition shows a strong R dependent feature. The transition temperature decreases monotonously from 187 to 77.6 K as R varies from Tm to Pr, with a corresponding maximum resistivity ranging from 2.34 to 6.17X10(4) Omega cm. Very different magnetoresistance effects are also observed in this series of compounds. By assuming the presence of inhomogeneous local lattice distortions due to ions with different sizes at A sites and their mismatch with B ions, the lattice effects can be understood qualitatively. (C) 1997 American Institute of Physics.
收录类别	SCI
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/311004/35347]
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	Sun, JR,Rao, GH,Liang, JK. Crystal structure and electronic transport property of perovskite manganese oxides with a fixed tolerance factor[J]. APPLIED PHYSICS LETTERS,1997,70(14):1900.
APA	Sun, JR,Rao, GH,&Liang, JK.(1997).Crystal structure and electronic transport property of perovskite manganese oxides with a fixed tolerance factor.APPLIED PHYSICS LETTERS,70(14),1900.
MLA	Sun, JR,et al."Crystal structure and electronic transport property of perovskite manganese oxides with a fixed tolerance factor".APPLIED PHYSICS LETTERS 70.14(1997):1900.