Phase diagram of fluid phases in ${}^3$He -${}^4$He mixtures

Abstract

Fluid parts of the phase diagram of ${}^3$He -${}^4$He mixtures are obtained from a mean-field analysis of a suitable lattice gas model for binary liquid mixtures. The proposed model takes into account the continuous rotational symmetry O(2) of the superfluid degrees of freedom associated with ${}^4$He and includes the occurrence of vacancies. This latter degree of freedom allows the model to exhibit a vapor phase and hence can provide the theoretical framework to describe the experimental conditions for measurements of tricritical Casimir forces in ${}^3$He -${}^4$He wetting films.

References in corpus (4)

• Liquid-vapour phase behaviour of a symmetrical binary fluid mixture
• Critical Casimir force in ${}^4$He films: confirmation of finite-size scaling
• Critical Casimir Effect in superfluid wetting films
• Phase diagram of a model for 3He-4He mixtures in three dimensions

Cited by in corpus (4)

• First-order phase transition and tricritical scaling behavior of the Blume-Capel model: a Wang-Landau sampling approach
• First-order transitions and thermodynamic properties in the 2D Blume-Capel model: the transfer-matrix method revisited
• The tricritical Ising CFT and conformal bootstrap
• Tricritical Casimir forces and order parameter profiles in wetting films of ${}^3\text{He}$ -${}^4\text{He}$ mixtures