Nernst Effect: Evidence of Local Kondo Scattering in Heavy Fermions
文献类型：期刊论文
| 作者 | Sun, PJ ; Steglich, F |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2013 |
| 卷号 | 110期号:21 |
| ISSN号 | 0031-9007 |
| 通讯作者 | Sun, PJ (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | A distinctly temperature-dependent Nernst coefficient, nu, which is strongly enhanced over that of LaCu2Si2, is observed between T = 2 and 300 K for CeCu2Si2 and Ce0.8La0.2Cu2Si2. The enhanced nu(T) is determined by the asymmetry of the on-site Kondo (conduction electron -4f electron) scattering rate. Taking into account the measured Hall mobility, mu(H), the highly unusual thermopower, S, of these systems can be semiquantitatively described by S(T) = -nu(T)/mu(H)(T), which explicitly demonstrates that the thermopower originates from the local Kondo scattering process over a wide temperature range from far above to well below the coherence temperature (approximate to 20 K for CeCu2Si2). Our results suggest that the Nernst effect can act as a proper probe of local charge-carrier scattering. This promises to impact on exploring the unconventional enhancement of the thermopower in correlated materials suited for potential applications. |
| 资助信息 | MOST of China [2012CB921701]; DFG [FG960] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57243]  |
| 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 | Sun, PJ,Steglich, F. Nernst Effect: Evidence of Local Kondo Scattering in Heavy Fermions[J]. PHYSICAL REVIEW LETTERS,2013,110(21). |
| APA | Sun, PJ,&Steglich, F.(2013).Nernst Effect: Evidence of Local Kondo Scattering in Heavy Fermions.PHYSICAL REVIEW LETTERS,110(21). |
| MLA | Sun, PJ,et al."Nernst Effect: Evidence of Local Kondo Scattering in Heavy Fermions".PHYSICAL REVIEW LETTERS 110.21(2013). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。