標題: | Electrical and thermal transport in single nickel nanowire |
作者: | Ou, M. N. Yang, T. J. Harutyunyan, S. R. Chen, Y. Y. Chen, C. D. Lai, S. J. 電子物理學系 Department of Electrophysics |
公開日期: | 11-二月-2008 |
摘要: | The thermal conductivity and electrical resistivity of a suspended nickel nanowire have been measured for T=15-300 K. The temperature dependence of the thermal conductivity and the Lorenz number strongly differ from the bulk. The comparison of the transports in the Ni nanowire shows, that at temperatures 75 < T < 300 K Wiedemann-Franz (WF) law holds, whereas at temperatures T < 75 K the WF law is violated, indicating that thermal current in this material is suppressed more than electrical current. The results are explained by combined effect of confined dimension, enhanced disorder, and grown contribution of N-processes. (C) 2008 American Institute of Physics. |
URI: | http://dx.doi.org/10.1063/1.2839572 http://hdl.handle.net/11536/9681 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.2839572 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 92 |
Issue: | 6 |
結束頁: | |
顯示於類別: | 期刊論文 |