2016/07/25 by Yu. V. Kalyuzhnyi, Kalyuzhnyi, Yurij V., Peter T. Cummings +1
Engineering · Materials Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #Material Dynamics and Properties #Phase Equilibria and Thermodynamics #Soft Condensed Matter (cond-mat.soft) #Theoretical and Computational Physics
paper · pdf · doi:10.48550/arxiv.1607.07251
openalex publication_date 2016/07/25 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28
A simple model of dimerizing hard spheres with highly nontrivial fluid-solid\nphase behaviour is proposed. The model is studied using the recently proposed\nresummed thermodynamic perturbation theory for central force (RTPT-CF)\nassociating potentials. The phase diagram has the fluid branch of the\nfluid-solid coexistence curve located at a temperatures lower than those of the\nsolid branch. This unusual behaviour is related to the strong dependence of the\nsystem excluded volume on the temperature, which for the model at hand\ndecreases with increasing temperature. This effect can be also seen for a wide\nfamily of fluid models with an effective interaction that combines short range\nattraction and repulsion at a larger distance. We expect that for sufficiently\nhigh repulsive barrier, such systems may show similar phase behaviour.\n