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

页码：4013 / 4016

页数：4

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