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Reentrant Melting in Laser Field Modulated Colloidal Suspensions

Chakrabarti, J and Krishnamurthy, HR and Sood, AK and Sengupta, S (1995) Reentrant Melting in Laser Field Modulated Colloidal Suspensions. In: Physical Review Letters, 75 (11). pp. 2232-2235.

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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.

Item Type: Journal Article
Publication: Physical Review Letters
Publisher: American Physical Society
Additional Information: Copyrigh of this article belongs to the American Physical Society.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 23 May 2007
Last Modified: 19 Sep 2010 04:38
URI: http://eprints.iisc.ac.in/id/eprint/11062

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