| Charge order and spin order of La0.3Ca0.7Mn（1-x）WxO3 system |
| |
| 作者姓名： | LIU Ning YAN Guoqing CAI Zhirang GUO Huanyin PENG Zhensheng QU Zhe ZHANG Yuheng |
| |
| 作者单位： | [1]Materials Research Laboratory, Suzhou College, Suzhou 234000, China [2]Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China |
| |
| 基金项目： | This work was supported by the National Natural Science Foundation of China （Grant No. 19934003） and the State Key Project of Fundamental Research of China （No.001CB610604）, |
| |
| 摘 要： | The colossal magnetoresistance (CMR) effect and charge ordering (CO) phenomenon in perovskite man- ganites have become very important research objects in the field of materials science. The charge ordering (CO) is that, in some materials with specific pro…
|
| 关 键 词： | La0.3Ca0.7Mn（1-x）WxO3 稀土 熔炼 残渣 炉料 |
| 文章编号： | 10.1007/s01434-006-0770-8 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005-04-202005-06-17 |
Charge order and spin order of La0.3Ca0.7Mn1?x
WxO3 system |
| |
| LIU Ning YAN Guoqing CAI Zhirang GUO Huanyin PENG Zhensheng QU Zhe ZHANG Yuheng.Charge order and spin order of La0.3Ca0.7Mn1?x
WxO3 system[J].Chinese Science Bulletin,2006,51(7):770-776. |
| |
| Authors: | Ning Liu Guoqing Yan Zhirang Cai Huanyin Guo Zhensheng Peng Zhe Qu Yuheng Zhang |
| |
| Institution: | (1) Materials Research Laboratory, Suzhou College, Suzhou, 234000, China;(2) Structure Research Laboratory, University of Science and Technology of China, Hefei, 230026, China |
| |
| Abstract: | The influences of W doping at Mn site on the charge order and spin order were studied by measuring M-T curves, M-H curves and ESR spectra of La0.3Ca0.7Mn1−x
WxO3 (x = 0.00, 0.04, 0.08, 0.12, 0.15) system. The results showed that: When 0.00 ⩽ x ⩽ 0.08, the system exhibits charge ordering (CO) phase, and its spin order experiences the change of paramagnetism (PM)-charge
ordering (CO)-antiferromagnetism (AFM) with decreasing temperature; when x ⩾ 0.12, the charge ordering (CO) phase melts, part of charge ordering (CO) phase remains in the paramagnetism (PM) background,
the spin order of the system is mainly paramagnetism (PM), and ferromagnetic (FM) clusters appear at low temperature. |
| |
| Keywords: | charge order spin order melting remains |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国科学通报(英文版)》下载免费的PDF全文 |
