Critical behavior of colloid-polymer mixtures in random porous media.
We show that the critical behavior of a colloid-polymer mixture inside a random porous matrix of quenched hard spheres belongs to the universality class of the random-field Ising model. We also demonstrate that random-field effects in colloid-polymer mixtures are surprisingly strong. This makes these systems attractive candidates to study random-field behavior experimentally.
Vink
R L C
RL
Institut für Theoretische Physik II, Heinrich-Heine-Universität Düsseldorf, Universitätsstrabe 1, 40225 Düsseldorf, Germany.
Binder
K
K
Löwen
H
H