Current effects and topology of current paths in single crystalline Pr0.7Pb0.3MnO3
文献类型：期刊论文
| 作者 | Li, RW ; Zhou, X ; Belik, AA ; Inoue, J ; Miki, K ; Shen, BG |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2006 |
| 卷号 | 100期号:11 |
| 关键词 | LA0.67CA0.33MNO3 THIN-FILMS INSULATOR-METAL TRANSITION MAGNETORESISTANCE PR0.7CA0.3MNO3 MANGANITES BEHAVIOR |
| ISSN号 | 0021-8979 |
| 通讯作者 | Li, RW: NIMS, ICYS, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan. |
| 中文摘要 | In electron-phase-separated Pr0.7Pb0.3MnO3 single crystals, nonlinear current effects have been observed above a critical current (I-c), beyond which a metal-insulator transition could be induced by the applied electrical current. We found that the square of I-c was linearly related to the external temperature, which can be well understood based on a local heating-cooling model. Furthermore, the surface area and mass of the current paths in the phase-separated systems were obtained by fitting our experimental data to the model, and a temperature-dependent topology of the current paths was found. In addition, interesting oscillatory behaviors in differential resistance (dV/dI) were observed at temperatures slightly above the metal-insulator transition temperature, which can be attributed to electron tunneling between isolated ferromagnetic clusters embedded in the insulating paramagnetic matrix. (c) 2006 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35566]  |
| 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 | Li, RW,Zhou, X,Belik, AA,et al. Current effects and topology of current paths in single crystalline Pr0.7Pb0.3MnO3[J]. JOURNAL OF APPLIED PHYSICS,2006,100(11). |
| APA | Li, RW,Zhou, X,Belik, AA,Inoue, J,Miki, K,&Shen, BG.(2006).Current effects and topology of current paths in single crystalline Pr0.7Pb0.3MnO3.JOURNAL OF APPLIED PHYSICS,100(11). |
| MLA | Li, RW,et al."Current effects and topology of current paths in single crystalline Pr0.7Pb0.3MnO3".JOURNAL OF APPLIED PHYSICS 100.11(2006). |
入库方式： OAI收割
来源：物理研究所
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