Scaling law for the fluid-solid phase transition in Yukawa systems (dusty plasmas)
- 1 February 2000
- journal article
- Published by Pleiades Publishing Ltd in Journal of Experimental and Theoretical Physics
- Vol. 90 (2) , 287-289
- https://doi.org/10.1134/1.559102
Abstract
Yukawa systems serve as models for plasmas and colloidal suspensions of charged particles. The state of these systems is determined by two dimensionless parameters: k = a/λ D , which is the ratio of the mean interparticle distance to the Debye length λ D , and Γ = Z d 2 e2/aT d , which is the ratio of the Coulomb potential energy to the particle temperature T d (Z d is the charge of each particle). We propose an empirical scaling law for the critical coupling parameter Γ c needed for crystallization in Yukawa systems. The dependence of Γ c on k is in good agreement with recent molecular dynamics simulations.Keywords
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