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Correlation of structural distortion with magnetic properties in electron-doped Ca0.9R0.1MnO3 perovskites (R=rare-earth)
Wang, Yang1,2; Sui, Yu3; Wang, Xianjie1; Su, Wenhui1; Liu, Xiaoyang4
Corresponding AuthorWang, Yang()
2010-09-15
Source PublicationJOURNAL OF APPLIED PHYSICS
ISSN0021-8979
Volume108Issue:6Pages:9
AbstractA 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]
Funding OrganizationScientific 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
DOI10.1063/1.3481419
Indexed BySCI
Language英语
Funding ProjectScientific 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 Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000282646400106
PublisherAMER INST PHYSICS
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/100389
Collection中国科学院金属研究所
Corresponding AuthorWang, Yang
Affiliation1.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
Recommended Citation
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.
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