Effect of fluctuations on the freezing of a colloidal suspension in an external periodic potential
Effect of fluctuations on the freezing of a colloidal suspension in an external periodic potential
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波动对外部周期电位中胶体悬浮液冻结的影响
DOI：
10.1051/jp2:1997155
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
S. Sinha
中科院分区：
文献类型：
--
作者：
J. Chakrabarti;S. Sinha
我们将波动的影响，在密度泛函分析中的冻结的胶体液体中存在的外部电位产生的干涉激光束。平均场处理，使用密度泛函理论，预测随着调制电位的强度的增加，冻结转变的变化从一阶到连续的一个通过三临界点的调制波矢量的适当选择。我们在这里表明，在大值的外部电位V-e的连续性质的冻结过渡生存的波动的存在。我们还表明，波动趋于稳定的液相在大的V-E制度。
We incorporate the effects of fluctuations in a density functional analysis of the freezing of a colloidal liquid in the presence of an external potential generated by interfering laser beams. A mean-field treatment, using a density functional theory, predicts that with the increase in the strength of the modulating potential, the freezing transition changes from a first order to a continuous one via a tricritical point for a suitable choice of the modulating wavevectors. We demonstrate here that the continuous nature of the freezing transition at large values of the external potential V-e survives the presence of fluctuations. We also show that fluctuations tend to stabilize the liquid phase in the large V-e regime.