Density functional theory for the freezing of soft-core fluids

Abstract

We present a simple density functional theory for the solid phases of systems of particles interacting via soft-core potentials. In particular, we apply the theory to particles interacting via repulsive point Yukawa and Gaussian pair potentials. We find qualitative agreement with the established phase diagrams for these systems. The theory is able to account for the bcc-fcc solid transitions of both systems and the re-entrant melting that the Gaussian system exhibits.

7 pages, 4 figures

References in corpus (4)

• Electrostatic correlations: from Plasma to Biology
• Phase diagram of the Gaussian-core model
• Fcc-bcc transition for Yukawa interactions determined by applied strain deformation
• Asymptotic decay of pair correlations in a Yukawa fluid

Cited by in corpus (6)

• Classical dynamical density functional theory: from fundamentals to applications
• Why do ultrasoft repulsive particles cluster and crystallize? Analytical results from density functional theory
• Evaluation of phenomenological one-phase criteria for the melting and freezing of softly repulsive particles
• Solidification in soft-core fluids: disordered solids from fast solidification fronts
• Generalized Onsager theory for strongly anisometric patchy colloids
• Chirality and odd mechanics in active columnar phases