Interface thermal resistance between Frenkel-kontorova and Fermi-Pasta-Ulam lattices

被引：18
|
作者：
Lan, Jinghua [1 ,2 ]
Wang, Lei [1 ,2 ]
Li, Baowen [1 ,2 ]
机构：
[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore
[2] Natl Univ Singapore, Ctr Computat Sci & Engn, Singapore 117542, Singapore
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2007年 / 21卷 / 23-24期
关键词：
thermal rectifier; vibration spectra; kapitza resistance;
D O I：
10.1142/S0217979207045116
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
By connecting two dissimilar anharmonic lattices exemplified by Fermi-Pasta-Ulam (FPU) model and Frenkel-kontorova (FK) model, we successfully build up one dimensional thermal diode. We find the rectifying effect is closely related to asymmetric interface thermal resistance ( Kapitza resistance). And the asymmetric thermal resistance depends on how the temperature gradient is applied. Moreover, a quatitative relationship between the thermal rectification and the phonon spectra is propsoed.
引用
收藏
页码：4013 / 4016
页数：4
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