Correlation of structural distortion with magnetic properties in electron-doped Ca0.9R0.1MnO3 perovskites (R=rare-earth)

doi:10.1063/1.3481419

IMR OpenIR

	Correlation of structural distortion with magnetic properties in electron-doped Ca0.9R0.1MnO3 perovskites (R=rare-earth)
	Wang, Yang 1,2; Sui, Yu 3; Wang, Xianjie 1; Su, Wenhui 1; Liu, Xiaoyang 4
通讯作者	Wang, Yang()
	2010-09-15
发表期刊	JOURNAL OF APPLIED PHYSICS
ISSN	0021-8979
卷号	108 期号:6 页码:9
摘要	A series of electron-doped orthorhombic-perovskite manganites Ca0.9R0.1MnO3 (R=La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Yb) are synthesized for a systematic study of their crystal structure and magnetic properties. The structural distortions, in terms of the average Mn-O-Mn bond angle theta(Mn-O-Mn) and Mn-O bond length d(Mn-O), are characterized as a function of the A-site ionic size. Two degenerate vibration modes Q(2) and Q(3) are used for describing the bond length splitting and the evolution of the octahedral-site distortion. With R3+ doping, the magnetization increases markedly at low temperatures, which can be attributed to the formation of ferromagnetic clusters in the antiferromagnetic matrix. Both low temperature magnetization and paramagnetic susceptibility vary with the radius of R3+ ion and enhanced ferromagnetic domain is found in Ca0.9Ho0.1MnO3. The Neel temperature T-N, varying from 100 to 116 K, is strongly dependent on the crystal structural distortions and can be well described as functions of three structural parameters theta(Mn-O-Mn), d(Mn-O), and A-site cation size variance sigma(2). The best size matching between Dy3+ and Ca2+ leads to the highest T-N in Ca0.9Dy0.1MnO3. (C) 2010 American Institute of Physics. [doi:10.1063/1.3481419]
资助者	Scientific Research Foundation for the Returned Overseas Chinese Scholars (State Education Ministry) ; Natural Scientific Research Innovation Foundation in Harbin Institute of Technology ; National Natural Science Foundation of China
DOI	10.1063/1.3481419
收录类别	SCI
语种	英语
资助项目	Scientific Research Foundation for the Returned Overseas Chinese Scholars (State Education Ministry) ; Natural Scientific Research Innovation Foundation in Harbin Institute of Technology[HIT. NSRIF. 2009056] ; National Natural Science Foundation of China[10804024]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000282646400106
出版者	AMER INST PHYSICS
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/100389
专题	中国科学院金属研究所
通讯作者	Wang, Yang
作者单位	1.Harbin Inst Technol, CCMST, Dept Phys, Harbin 150001, Peoples R China 2.Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore 3.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China 4.Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yang,Sui, Yu,Wang, Xianjie,et al. Correlation of structural distortion with magnetic properties in electron-doped Ca0.9R0.1MnO3 perovskites (R=rare-earth)[J]. JOURNAL OF APPLIED PHYSICS,2010,108(6):9.
APA	Wang, Yang,Sui, Yu,Wang, Xianjie,Su, Wenhui,&Liu, Xiaoyang.(2010).Correlation of structural distortion with magnetic properties in electron-doped Ca0.9R0.1MnO3 perovskites (R=rare-earth).JOURNAL OF APPLIED PHYSICS,108(6),9.
MLA	Wang, Yang,et al."Correlation of structural distortion with magnetic properties in electron-doped Ca0.9R0.1MnO3 perovskites (R=rare-earth)".JOURNAL OF APPLIED PHYSICS 108.6(2010):9.