Transport and magnetic properties of Sr doped Nd0.55Ca0.45MnO3

doi:10.1007/s10832-007-9156-9

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	Transport and magnetic properties of Sr doped Nd0.55Ca0.45MnO3
	Wang, K. F.1,2; Wang, Y.1,2; Dong, Sh.1,2; Yao, X. Y.1,2; Liu, J. -M.1,2
通讯作者	Liu, J. -M.(liujm@nju.edu.cn)
	2008-12-01
发表期刊	JOURNAL OF ELECTROCERAMICS
ISSN	1385-3449
卷号	21 期号:1-4 页码:344-348
摘要	The effect of Sr doping on the transport and snag netism properties of charge/orbital-ordered Nd0.55Ca0.45MnO3 is investigated. A low temperature phase transition from a charge/orbital ordered insulator to a ferromagnetic metal was founded in the Nd-0.55(Ca1-xSrx)(0.45)MnO3 samples. The ground state is the charge/orbital ordered insulator at x < 0.2, while for x > 0.3 it changes to a ferromagnetic metal. The resistivities of the samples exhibit almost ideal percolation behavior with a percolation threshold of 0.3. Therefore, this system shows an intricate competition between metallic ferromagnetism and charge/orbital ordered insulator and the percolation behavior demonstrates that the relative volumes of ferromagnetic phase and charge/orbital phases changes with the doping content x and temperature.
关键词	Colossal magnetoresistance effect Phase separation Percolation behavior
DOI	10.1007/s10832-007-9156-9
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000262833200075
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/92968
专题	中国科学院金属研究所
通讯作者	Liu, J. -M.
作者单位	1.Nanjing Univ, Solid State Microstruct Lab, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Wang, K. F.,Wang, Y.,Dong, Sh.,et al. Transport and magnetic properties of Sr doped Nd0.55Ca0.45MnO3[J]. JOURNAL OF ELECTROCERAMICS,2008,21(1-4):344-348.
APA	Wang, K. F.,Wang, Y.,Dong, Sh.,Yao, X. Y.,&Liu, J. -M..(2008).Transport and magnetic properties of Sr doped Nd0.55Ca0.45MnO3.JOURNAL OF ELECTROCERAMICS,21(1-4),344-348.
MLA	Wang, K. F.,et al."Transport and magnetic properties of Sr doped Nd0.55Ca0.45MnO3".JOURNAL OF ELECTROCERAMICS 21.1-4(2008):344-348.