Structural arrest transitions in fluids described by two Yukawa potentials

A model system, with a short-range attractive and a long-range repulsive Yukawa potential, was investigated to study the structural arrest transitions. By calculating the Debye-Waller factors in the framework of the mode-coupling theory for three different heights of the repulsive barrier, the kinetic liquid-glass phase diagrams was obtained, and the glass-glass re-entrance phenomenon was observed. The kinetic phase diagrams as functions of the attraction depth and the volume fraction were obtained, using the structure factor calculated from the mean-spherical approximation as the input. Crossover points separating different glass states were identified along the liquid-glass transition line between the liquid regime and the lower glass regime.