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. 
R. L. C. Vink, K. Binder, and H. Loewen