Positive magnetoresistance feature in ultrathin La0.67Ca0.33MnO3 films
文献类型：期刊论文
| 作者 | Zhong, JP ; Yang, SB ; Yuan, J ; Xu, B ; Cao, LX ; Qiu, XG ; Zhao, BR |
| 刊名 | SOLID STATE COMMUNICATIONS
 |
| 出版日期 | 2005 |
| 卷号 | 136期号:9-10页码:528 |
| 关键词 | 3-DIMENSIONAL STRAIN STATES THIN-FILMS COLOSSAL MAGNETORESISTANCE GRAIN-BOUNDARIES PHASE MANGANITES RESISTIVITY |
| ISSN号 | 0038-1098 |
| 通讯作者 | Zhong, JP (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The ultrathin epitaxial La0.67Ca0.33MnO3 (LCMO) films with thickness from 8 to 50 nm on (001) SrTiO3 (STO) substrates were prepared and investigated, and the unique MR effects were distinctly observed. The positive magnetoresistance (MR) effects were observed in the high temperature region for all the present ultrathin films. The films with thickness in the range from 17 to 30 nm not only show the positive MR effect at high temperature (> T-MI), but also in the low temperature region (<= 96 K for 17 nm, <= 108 K for 30 nm). It is suggested that the positive MR effect occurred at low temperature could be attributed to the scattering of the domain wall on charge carriers, while the positive MR effect occurred at temperature higher than T-MI is attributed to the transport dominated by the magnetic polarons which formed due to the trap of charge carriers with spin in local distorted lattice in such highly strained ultrathin LCMO films. (c) 2005 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51161]  |
| 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 | Zhong, JP,Yang, SB,Yuan, J,et al. Positive magnetoresistance feature in ultrathin La0.67Ca0.33MnO3 films[J]. SOLID STATE COMMUNICATIONS,2005,136(9-10):528. |
| APA | Zhong, JP.,Yang, SB.,Yuan, J.,Xu, B.,Cao, LX.,...&Zhao, BR.(2005).Positive magnetoresistance feature in ultrathin La0.67Ca0.33MnO3 films.SOLID STATE COMMUNICATIONS,136(9-10),528. |
| MLA | Zhong, JP,et al."Positive magnetoresistance feature in ultrathin La0.67Ca0.33MnO3 films".SOLID STATE COMMUNICATIONS 136.9-10(2005):528. |
入库方式： OAI收割
来源：物理研究所
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