| 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 Author | Wang, Yang() |
| 2010-09-15 | |
| Source Publication | JOURNAL OF APPLIED PHYSICS
 |
| ISSN | 0021-8979 |
| Volume | 108Issue:6Pages:9 |
| Abstract | 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] |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Physics |
| WOS Subject | Physics, Applied |
| WOS ID | WOS:000282646400106 |
| Publisher | AMER INST PHYSICS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/100389 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Yang |
| Affiliation | 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 |
| 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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