Chakrabarti, J and Sinha, S (1997) Effect of fluctuations on the freezing of a colloidal suspension in an external periodic potential. In: Journal de Physique: II, 7 (5). pp. 729-741.
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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.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal de Physique: II |
| Publisher: | EDP Sciences |
| Additional Information: | Copyright of this article belongs to EDP Sciences. |
| Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
| Date Deposited: | 19 Oct 2011 07:51 |
| Last Modified: | 19 Oct 2011 07:51 |
| URI: | http://eprints.iisc.ac.in/id/eprint/38264 |
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