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Europhys. Lett.
Volume 67, Number 5, September 2004
Page(s) 814 - 819
Section Condensed matter: structure, mechanical and thermal properties
Published online 01 August 2004
Europhys. Lett., 67 (5), pp. 814-819 (2004)
DOI: 10.1209/epl/i2004-10123-8

A numerical renormalization group study of laser-induced freezing

Debasish Chaudhuri and Surajit Sengupta

Satyendra Nath Bose National Centre for Basic Sciences - Block-JD, Sector-III Salt Lake, Calcutta, 700098 India

(Received 19 March 2004; accepted 24 June 2004)

We study the phenomenon of laser-induced freezing, within a numerical renormalization scheme which allows explicit comparison with a recent defect-mediated melting theory. Precise values for the "bare" dislocation fugacities and elastic moduli of the 2d hard-disk system are obtained from a constrained Monte Carlo simulation sampling only configurations without dislocations. These are used as inputs to appropriate renormalization flow equations to obtain the equilibrium phase diagram. We show that the flow equations need to be correct at least up to third order in defect fugacity to reproduce meaningful results.

64.70.Dv - Solid-liquid transitions.
64.60.Ak - Renormalization-group, fractal, and percolation studies of phase transitions.
82.70.Dd - Colloids.

© EDP Sciences 2004