E. Stoll
Advances in Image Processing and Pattern Recognition 1985
Using the Monte Carlo technique the authors have studied a two-dimensional Ising model with quenched non-magnetic impurities. In particular they calculated the temperature dependence of the order parameter, of the zero-field susceptibility and of the specific heat. These results indicate that a second-order phase transition is preserved for p>or=0.9 where 1-p denotes the concentration of randomly distributed non-magnetic sites. Moreover, they yield beta approximately=1/8 and gamma approximately=7/4, indicating that these exponents equal the corresponding ones for the pure Ising model.
E. Stoll
Advances in Image Processing and Pattern Recognition 1985
H. De Raedt, T. Schneider
Zeitschrift für Physik B Condensed Matter
U. Glaus, T. Schneider
Physical Review B
T. Schneider, H. Beck, et al.
Physica C: Superconductivity and its applications