Crossover effects in the bond-diluted Ising model in three dimensions
  We investigate by Monte Carlo simulations the critical properties of the three-dimensional bond-diluted Ising model. The phase diagram is determined by locating the maxima of the magnetic susceptibility and is compared to mean-field and effective-medium approximations. The calculation of the size-dependent effective critical exponents shows the competition between the different fixed points of the model as a function of the bond dilution. 
P.E. Berche (1), C. Chatelain (2,3), B. Berche (3), W. Janke (2) ((1)   Universit\'e de Rouen, (2) Institut f\"ur Theoretisc...