Dynamic Phase Transition of Two-Dimensional Disordered Colloids |
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作者姓名: | 陈江星 曹义刚 焦正宽 |
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作者单位: | DepartmentofPhysics,ZhejiangUniversity,Hangzhou310027 |
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摘 要: | Using Langevin simulations, we numerically study the influence of temperature to the dynamics of driven two-dimensional colloids on a disordered substrate. With decreasing temperature, the result shows a dynamic phase transition from the moving liquid to the moving smectic at high driving forces. A peak appears in the dynamically-critical driving force across the transition, accompanied by a clear cross of the curves of velocity-force dependence.
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关 键 词: | Langevin模拟 二维胶体 力学相变 液晶相 分子力学 |
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