Size effects on charge ordering and magnetic properties in La0.25Ca0.75MnO3
文献类型：期刊论文
| 作者 | Li, X. G.1,2; Zhang, T.1,2 |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2009 |
| 卷号 | 35期号:1页码:151-155 |
| 关键词 | C. Magnetic properties Charge ordering Manganites |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2007.10.026 |
| 通讯作者 | Li, X. G.(lixg@ustc.edu.cn) |
| 英文摘要 | The size effects on the charge ordering (CO) and magnetic properties in La0.25Ca0.75MnO3 with mean particle size ranging from 40 to 2000 nm were studied. With decreasing particle size the CO transition temperature shifts to lower temperature and the transition width becomes increasingly wide, indicating the weakening of the CO state. Meanwhile the ferromagnetic (FM) cluster glass state appears and the magnetization at low temperature increases significantly. The behaviour is due to the increasing uncompensated surface spins which weaken the antiferromagnetic interaction and disfavour the formation of the CO state. The suppression of the CO state and appearance of the FM cluster glass state are also found in La0.25Ca0.75MnO3 nanowires fabricated by a sol-gel template method. These results indicate that the CO state can be modulated effectively by varying particle size, which has an important implication for nano-device applications of manganites. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[50421201] ; National Natural Science Foundation of China[10334090] ; National Basic Research Program of China[2006CB922005] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000261818300028 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; National Basic Research Program of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/99594]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, X. G. |
| 作者单位 | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Phys, Hefei 230026, Peoples R China 2.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, X. G.,Zhang, T.. Size effects on charge ordering and magnetic properties in La0.25Ca0.75MnO3[J]. CERAMICS INTERNATIONAL,2009,35(1):151-155. |
| APA | Li, X. G.,&Zhang, T..(2009).Size effects on charge ordering and magnetic properties in La0.25Ca0.75MnO3.CERAMICS INTERNATIONAL,35(1),151-155. |
| MLA | Li, X. G.,et al."Size effects on charge ordering and magnetic properties in La0.25Ca0.75MnO3".CERAMICS INTERNATIONAL 35.1(2009):151-155. |
入库方式： OAI收割
来源：金属研究所
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