Higher-order glass-transition singularities in colloidal systems with attractive interactions

@article{DawsonZaccarelliPRE2000, abstract = {The transition from a liquid to a glass in colloidal suspensions of particles interacting through a hard core plus an attractive square-well potential is studied within the mode-coupling-theory framework. When the width of the attractive potential is much shorter than the hard-core diameter, a reentrant behavior of the liquid-glass line and a glass-glass-transition line are found in the temperature-density plane of the model. For small well-width values, the glass-glass-transition line terminates in a third-order bifurcation point, i.e., in a A3 ~cusp! singularity. On increasing the square-well width, the glass-glass line disappears, giving rise to a fourthorder A4 ~swallow-tail! singularity at a critical well width. Close to the A3 and A4 singularities the decay of the density correlators shows stretching of huge dynamical windows, in particular logarithmic time dependence.}, author = {Dawson, K. and Foffi, G. and Fuchs, M. and G{\"o}tze, W. and Sciortino, F. and Sperl, M. and Tartaglia, P. and Voigtmann, Th and Zaccarelli, E. }, citeulike-article-id = {300219}, journal = {Phys. Rev. E}, keywords = {attractive, colloids, glass, mct, theory}, month = {December}, pages = {011401-1--011401-17}, posted-at = {2005-08-22 04:42:02}, priority = {2}, title = {Higher-order glass-transition singularities in colloidal systems with attractive interactions}, volume = {63}, year = {2000} }

TY - JOUR ID - DawsonZaccarelliPRE2000 L3 - citeulike-article-id:300219 TI - Higher-order glass-transition singularities in colloidal systems with attractive interactions JF - Phys. Rev. E VL - 63 SP - 011401-1 EP - 011401-17 N2 - The transition from a liquid to a glass in colloidal suspensions of particles interacting through a hard core plus an attractive square-well potential is studied within the mode-coupling-theory framework. When the width of the attractive potential is much shorter than the hard-core diameter, a reentrant behavior of the liquid-glass line and a glass-glass-transition line are found in the temperature-density plane of the model. For small well-width values, the glass-glass-transition line terminates in a third-order bifurcation point, i.e., in a A3 ~cusp! singularity. On increasing the square-well width, the glass-glass line disappears, giving rise to a fourthorder A4 ~swallow-tail! singularity at a critical well width. Close to the A3 and A4 singularities the decay of the density correlators shows stretching of huge dynamical windows, in particular logarithmic time dependence. KW - attractive KW - colloids KW - glass KW - mct KW - theory AU - Dawson, K AU - Foffi, G AU - Fuchs, M AU - G{\"o}tze, W AU - Sciortino, F AU - Sperl, M AU - Tartaglia, P AU - Voigtmann, Th AU - Zaccarelli, E PY - 2000/12/19/ ER -