Critical behavior of colloid-polymer mixtures in random porous media
arXiv:cond-mat/0610872 · doi:10.1103/PhysRevLett.97.230603
Abstract
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.
4 pages, 3 figures, to appear in Phys. Rev. Lett