Monte Carlo simulation of size effects on thermal conductivity in a two-dimensional Ising system

被引：9

作者：

Neek-Amal, M.

Moussavi, R.

Sepangi, H. R. ^{[1
]}

机构：

[1] Shahid Beheshti Univ, Dept Phys, Tehran 19839, Iran

[2] Inst Studies Theoret Phys & Math, IPM, Computat Phys Sci Res Lab, Dept Nanosci, Tehran, Iran

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2006年 / 371卷 / 02期

关键词：

Monte Carlo simulation; Ising system; thermal conductivity;

D O I：

10.1016/j.physa.2006.03.026

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A model based on microcanonical Monte Carlo method is used to study the application of the temperature gradient along a two-dimensional (2D) Ising system. We estimate the system size effects on thermal conductivity, K, for a nanoscale Ising layer with variable size. It is shown that K scales with size as K = cL(alpha) where alpha varies with temperature. Both the Metropolis and Creutz algorithms have been used to establish the temperature gradient. Further results show that the average demon energy in the presence of an external magnetic field is zero for low temperatures. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：424 / 432

页数：9

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