Laser induced freezing of charge stabilized colloidal system
Chinmay Das, A. K. Sood, H. R. Krishnamurthy
Abstract
We present results from an extensive simulational study of the modulated liquid crystal transition in a 2-d charge-stabilized colloid subject to a 1-d laser field modulation commensurate with the crystalline phase. Contrary to some earlier simulational and experimental findings we do not find any reentrant liquid phase in our simulation. Furthermore the transition remains first-order (albeit weak, with a fairly large correlation length) even in the limit of infinite field, contrary to mean-field predictions. In the modulated liquid phase, while the translational order decays exponentially, the bond orientational order is actually long ranged.
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