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7 papers · 1 filter
Extended scaling for ferromagnetic Ising models with zero-temperature transitions
Helmut G. Katzgraber, I. A. Campbell, A. K. Hartmann
We study the second-moment correlation length and the reduced susceptibility of two ferromagnetic Ising models with zero-temperature ordering. By introducing a scaling variable mot…
Influence of thermal history on the structure and properties of silicate glasses
Claire Levelut, Rozenn Le Parc, Annelise Faivre +1
We studied a set of float glass samples prepared with different fictive temperature by previous annealing around the glass transition temperature. We compared the results to previo…
Effective critical behavior of the two-dimensional Ising spin glass with bimodal interactions
Helmut G. Katzgraber, Lik Wee Lee, I. A. Campbell
Monte Carlo data of the two-dimensional Ising spin glass with bimodal interactions are presented with the aim of understanding the low-temperature physics of the model. An analysis…
Dynamical scaling in Ising and vector spin glasses
Helmut G. Katzgraber, I. A. Campbell
We have studied numerically the dynamics of spin glasses with Ising and XY symmetry (gauge glass) in space dimensions 2, 3, and 4. The nonequilibrium spin-glass susceptibility and…
Energy size effects of two-dimensional Ising spin glasses
I. A. Campbell, A. K. Hartmann, Helmut G. Katzgraber
We analyze exact ground-state energies of two-dimensional Ising spin glasses with either Gaussian or bimodal nearest-neighbor interactions for large system sizes and for three type…
Critical properties of the three- and four-dimensional gauge glass
Helmut G. Katzgraber, I. A. Campbell
The gauge glass in dimensions 3 and 4 is studied using a variety of numerical methods, in order to obtain accurate and reliable values for the critical parameters. Detailed compari…