Reentrant melting in laser field modulated colloidal suspensions.
Reentrant melting in laser field modulated colloidal suspensions.
复制标题
激光场调制胶体悬浮液中的重入熔化。
DOI：
10.1103/physrevlett.75.2232
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发表时间：
1995
影响因子：
8.6
通讯作者：
Sengupta
中科院分区：
文献类型：
--
作者：
Chakrabarti;Krishnamurthy;Sood;Sengupta
我们提出了激光场调制胶体中相图和调制液体到晶体转变顺序的蒙特卡罗模拟研究结果。我们发现，对于低值的$\beta V_e$，调制势的强度，转变是一阶的，但对于高值的$\beta V_e$，转变为连续转变，这与激光诱导冻结的密度泛函理论的结论一致。然而，我们在模拟中发现，与（平均场）密度泛函相图不同，随着 $\beta V_e$ 的增加，一种新型的重入激光诱导从晶体到调制液相的熔化转变。
We present results from a Monte Carlo simulation study of the phase diagram and the order of the modulated liquid to crystal transition in laser field modulated colloids. We find that for low values of $\beta V_e$, the strength of the modulation potential, the transition is first order, but changes to a continuous transition for high values of $\beta V_e$, in agreement with the conclusions from the density functional theory of laser induced freezing. However, we find in the simulation a novel reentrant laser induced melting transition from the crystal to the modulated liquid phase with increasing $\beta V_e$, unlike the (mean field) density functional phase diagram.