We analyze the thermodynamic properties of the random-bond Ising model (RBIM) on closed hyperbolic surfaces using Monte Carlo and high-temperature series expansion techniques. We also analyze the dual-RBIM, that is, the model that in the absence of disorder is related to the RBIM via the ...
isingfermionsdimensionalmodelrandomrbim a r X i v : c o n d - m a t / 0 1 0 6 0 2 3 v 3 [ c o n d - m a t . d i s - n n ] 1 3 J u n 2 0 0 1 Thetwo-dimensionalrandom-bondIsingmodel,freefermionsandthenetworkmodel F.MerzandJ.T.Chalker TheoreticalPhysics,Univer...
(2000), A Random Bond Ising Model Applied to the Magnetic Properties of FexMn0.6—xAl0.4 Disordered Alloys. Phys. Status Solidi B, 220: 363–367. doi: 10.1002/1521-3951(200007)220:1<363::AID-PSSB363>3.0.CO;2-T Author Information Departamento de Física, Universidad del Valle, A. A...
interactions are drawn from a binary distribution which is a function of the bond concentration, p. The decay of the persistence probability in the model depends on both the spatial dimension and p. We find no evidence of ‘blocking’ in this model. We also discuss the implications of our...
Effect of random defects on the critical behaviour of Ising models A cumulant expansion is used to calculate the transition temperature of Ising models with random-bond defects. For a concentration, x, of missing interactions in the simple-square Ising model the author finds -Tc-1 dTc/dx mod ...
Critical-Point Correlation Function for the 2D Random Bond Ising Model High-accuracy Monte Carlo simulation results for a 1024 * 1024 Ising system with ferromagnetic impurity bonds are presented. The spin-spin correlation func... A.,L.,Talapov,... - Epl 被引量: 18发表: 1994年 Theory of ...
The configuration-averaged free energy of a quenched, random bond Ising model on a square lattice which contains an equal mixture of two types of ferromagn... R Fisch - 《Journal of Statistical Physics》 被引量: 67发表: 1978年 A Random Bond Ising Model Applied to the Magnetic Properties of...
We report results of a Wang-Landau study of the random bond square Ising model with nearest- ($J_{nn}$) and next-nearest-neighbor ($J_{nnn}$) antiferromagnetic interactions. We consider the case $R=J_{nn}/J_{nnn}=1$ for which the competitive nature of interactions produces a sub...
Universality in disordered systems: the case of the three-dimensional random-bond Ising model. Universality in disordered systems: the case of the three-dimensional random-bond Ising model.We study the critical behavior of the d=3 d=3 Ising model with bond randomness through extensive Monte Carlo...
The configuration-averaged free energy of a quenched, random bond Ising model on a square lattice which contains an equal mixture of two types of ferromagn... R Fisch - 《Journal of Statistical Physics》 被引量: 67发表: 1978年 Strong violation of critical phenomena universality: Wang-Landau ...