| Thermal Hysteresis in La2/3 Ca1/3 MnO3 Films Grown on Tilted SrTiO3 Substrates and Influence of External Magnetic Field |
| |
| 作者姓名： | 关东仪 周庆莉 赵昆 孙赢兴 金奎娟 陈正豪 吕惠宾 杨国桢 |
| |
| 作者单位： | [1]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, PO Box 603, Beijing 100080 [2]Department of Physics, Liaoning University, Shenyang 110036 |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No10274100 |
| |
| 摘 要： |
|
| 关 键 词： | 热滞后 La2/3 Ca1/3 MnO3薄膜 SrTiO3衬底 外部磁场 |
| 收稿时间： | 2005-07-12 |
| 修稿时间： | 2005-07-12 |
Thermal Hysteresis in La2/3 Ca1/3 MnO3 Films Grown on Tilted SrTiO3 Substrates and Influence of External Magnetic Field |
| |
| GUAN Dong-Yi, ZHOU Qing-Li, ZHAO Kun, SUN Jia-Xing, JIN Kui Juan, CHEN Zheng-Hao, LU Hui-Bin, YANG Guo-Zhen.Thermal Hysteresis in La2/3 Ca1/3 MnO3 Films Grown on Tilted SrTiO3 Substrates and Influence of External Magnetic Field[J].Chinese Physics Letters,2006,23(2):460-462. |
| |
| Authors: | GUAN Dong-Yi ZHOU Qing-Li ZHAO Kun SUN Jia-Xing JIN Kui Juan CHEN Zheng-Hao LU Hui-Bin YANG Guo-Zhen |
| |
| Abstract: | Thermal hysteresis in the resistivity of La2/3 Cu1/3MnO3 thin films grown on tilted SrTiO3 substrates is simulated by using the random network model on the basis of mixed-phase percolation between metallic and insulating domains, The metallic-insulating transition temperatures during the warming process are lower than those during the cooling process due to the difference in fraction of metallic domains between warming and cooling process. With an external magnetic field, the metallic-insulating transition temperatures shift to a higher value and the resistivities are reduced. The excellent agreement between the simulation and the experimental data further verifies that phase separation plays a crucial role in the transport process of La2/3Ca1/3MnO3 thin films. |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
