Time-averaged heat generation in a quantum dot driven by an alternating current bias
文献类型：期刊论文
| 作者 | Pei, W ; Sun, QF |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2012 |
| 卷号 | 112期号:12 |
| 关键词 | MOLECULAR JUNCTIONS SYSTEMS |
| ISSN号 | 0021-8979 |
| 通讯作者 | Pei, W (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | The low-temperature transport properties were systematically studied on the electron-doped polycrystalline La1-xHfxMnO3(x=0.2 and 0.3) compounds at the presence of external magnetic fields. The resistivity of all samples exhibits a generally low-temperature resistance upturn behavior under zero magnetic field at the temperature of T-min, which first shifts towards lower temperature at low magnetic field (H<0.75 T) and then moves back to higher temperature as magnetic fields increase, which is greatly different with the previous results on the hole-doped manganites. The best fitting of low-temperature resistivity could be made by considering both electron-electron (e-e) interactions in terms of T-1/2 dependence and Kondo-like spin dependent scattering in terms of lnT dependence at all magnetic fields. Our results will be meaningful to understand the underlying physical mechanism of low-temperature resistivity minimum behavior in the electron-doped manganites. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4770320] |
| 收录类别 | SCI |
| 资助信息 | NSF-China [10974236, 11074174]; China-973 program; US-DOE [DE-FG02-04ER46124] |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45909]  |
| 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 | Pei, W,Sun, QF. Time-averaged heat generation in a quantum dot driven by an alternating current bias[J]. JOURNAL OF APPLIED PHYSICS,2012,112(12). |
| APA | Pei, W,&Sun, QF.(2012).Time-averaged heat generation in a quantum dot driven by an alternating current bias.JOURNAL OF APPLIED PHYSICS,112(12). |
| MLA | Pei, W,et al."Time-averaged heat generation in a quantum dot driven by an alternating current bias".JOURNAL OF APPLIED PHYSICS 112.12(2012). |
入库方式： OAI收割
来源：物理研究所
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