Laser-induced melting in two-dimensional colloidal systems

被引：4
|
作者：
Enomoto, Y [1 ]
Sawa, M [1 ]
Itamoto, H [1 ]
机构：
[1] Nagoya Inst Technol, Dept Environm Technol, Nagoya, Aichi 4668555, Japan
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2005年 / 345卷 / 3-4期
关键词：
laser-induced melting; laser-induced freezing; Brownian dynamics simulation; colloidal suspension;
D O I：
10.1016/j.physa.2004.07.036
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The dynamics of a charged two-dimensional colloidal system in the presence of a one-dimensionally modulated laser field is studied by using Brownian dynamics simulations. The present model consists of interacting point particles in two dimensions, including effects of screened Coulomb force, laser-induced periodic force, Stokes drag force, and thermal noise. In the case of low particle density and the laser potential periodicity commensurate with the mean interparticle distance, computer simulation results find four characteristic phases with three crossovers as a function of the laser field strength. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：547 / 554
页数：8
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