Large lattice effects arising from Sc on magnetic and transport properties in La0.7Ca0.3Mn1-xScxO3
文献类型：期刊论文
| 作者 | Huang, YH ; Liao, CS ; Wang, ZM ; Li, XH ; Yan, CH ; Sun, JR ; Shen, BG |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2002 |
| 卷号 | 65期号:18 |
| 关键词 | COLOSSAL MAGNETORESISTANCE GIANT MAGNETORESISTANCE DOPED LAMNO3 PEROVSKITES TRANSITION LA0.5CA0.5MNO3 RESISTIVITY EXCHANGE OXIDES FILMS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Yan, CH: Peking Univ, Coll Chem & Mol Engn, PKU HKU Joint Lab Rare Earth Mat & Bioinorgan Chem, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China. |
| 中文摘要 | Structural, magnetic, and transport properties in La0.7Ca0.3Mn1-xScxO3 have been experimentally investigated. A sensitive response on the magnetic and transport properties to Sc substituting for Mn is observed, demonstrated as a rapid decrease in Curie temperature (T-C) and a remarkable enhancement in magnetoresistance. In the range of x=0-0.03, T-C shifts linearly to a lower temperature with increasing x at a rate of around 37 K for each 1% Sc3+ doping. The data of saturation magnetization show no magnetic coupling between Sc and Mn ions. Mn4+/Mn content increases from 30.5 to 37.7% when x varies from 0 to 0.1, indicative of the small influence on T-C. Structural refinement reveals a large lattice distortion in the MnO6 octahedra with Sc doping because of the dopant-size-induced local strain effect. According to the dependence of the tolerance factor on magnetic phase diagram, it is believed that the enhanced doping effects should be ascribed to the additional local strain effect, as well as the size mismatch between A- and B-site ions, caused by the large Sc3+ ions in the lattice. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/40594]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Huang, YH,Liao, CS,Wang, ZM,et al. Large lattice effects arising from Sc on magnetic and transport properties in La0.7Ca0.3Mn1-xScxO3[J]. PHYSICAL REVIEW B,2002,65(18). |
| APA | Huang, YH.,Liao, CS.,Wang, ZM.,Li, XH.,Yan, CH.,...&Shen, BG.(2002).Large lattice effects arising from Sc on magnetic and transport properties in La0.7Ca0.3Mn1-xScxO3.PHYSICAL REVIEW B,65(18). |
| MLA | Huang, YH,et al."Large lattice effects arising from Sc on magnetic and transport properties in La0.7Ca0.3Mn1-xScxO3".PHYSICAL REVIEW B 65.18(2002). |
入库方式： OAI收割
来源：物理研究所
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