Competition between band filling and steric effect in ordered double perovskites Sr2-xLaxMnMoO6

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	Competition between band filling and steric effect in ordered double perovskites Sr2-xLaxMnMoO6
	Tian Shizhe; Zhao Junchai; Qiao Congde; Ji Xiangling; Jiang Bingzheng
刊名	JOURNAL OF RARE EARTHS
	2006-12-01
卷号	24 期号:6 页码:679-684
关键词	Double Perovskite Band Filling Steric Effect Ferrimagnetism Rare Earths
ISSN号	1002-0721
英文摘要	The ordered double perovskites, Sr2-xLaxMnMoO6, were prepared by sol-gel reaction. Structural, magnetic, and electrical properties were investigated for a series of ordered double perovskites Sr2-xLaxMnMoO6(0 <= x <= 1). The compounds have a monoclinic structure (space group P2(1)/n) and the cell volume expands monotonically with La doping. The T-C and the magnetic moment rise and the cusp-like transition temperature below which the magnetic frustration occurs shifts to high temperature as x increases. With La doping, electrical resistivity of Sr2-xLaxMnMoO6 decreases only at low doping levels (x <= 0.2); while at high doping levels (0.8 <= x <= 1), electrical resistivity tends to increase greatly. The results suggest that the competition between band filling effect and steric effect coexists in the whole doping range, and the formation of ferrimagnetic interactions is not simply at the expense of antiferromagnetic interactions.
语种	英语
出版者	METALLURGICAL INDUSTRY PRESS
WOS记录号	WOS:000243319700008
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/60045]
专题	中国科学院化学研究所
通讯作者	Tian Shizhe
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Tian Shizhe,Zhao Junchai,Qiao Congde,et al. Competition between band filling and steric effect in ordered double perovskites Sr2-xLaxMnMoO6[J]. JOURNAL OF RARE EARTHS,2006,24(6):679-684.
APA	Tian Shizhe,Zhao Junchai,Qiao Congde,Ji Xiangling,&Jiang Bingzheng.(2006).Competition between band filling and steric effect in ordered double perovskites Sr2-xLaxMnMoO6.JOURNAL OF RARE EARTHS,24(6),679-684.
MLA	Tian Shizhe,et al."Competition between band filling and steric effect in ordered double perovskites Sr2-xLaxMnMoO6".JOURNAL OF RARE EARTHS 24.6(2006):679-684.