Equilibrium properties and phase diagram of two-dimensional Yukawa systems

P. Hartmann, G. J. Kalman, Z. Donkó, K. Kutasi

Research output: Contribution to journalArticle

147 Citations (Scopus)

Abstract

Properties of two-dimensional strongly coupled Yukawa systems are explored through molecular dynamics simulations. An effective coupling coefficient Γ* for the liquid phase is introduced on the basis of the constancy of the first peak amplitude of the pair-correlation functions. Thermodynamic quantities are calculated from the pair-correlation function. The solid-liquid transition of the system is investigated through the analysis of the bond-angular order parameter. The static structure function satisfies consistency relation, attesting to the reliability of the computational method. The response is shown to be governed by the correlational part of the inverse compressibility. An analysis of the velocity autocorrelation demonstrates that this latter also exhibits a universal behavior.

Original languageEnglish
Article number026409
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume72
Issue number2
DOIs
Publication statusPublished - Aug 1 2005

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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