34 citations · 87 across the 6 of their papers we have counts for
8 papers
Ordering temperatures of Ising Spin Glasses
I. A. Campbell
Exploiting an approach due to Singh and Fisher I show that in the high dimension limit the ordering temperature of near neighbour Ising Spin Glasses drops linearly with the kurtosi…
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…
The Anomalous Hall effect in re-entrant AuFe alloys and the real space Berry phase
P. Pureur, F. Wolff Fabris, J. Schaf +2
The Hall effect has been studied in a series of AuFe samples in the re-entrant concentration range, as well as in the spin glass range. The data demonstrate that the degree of cant…
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…
Size dependence of the internal energy in Ising and vector spin glasses
Helmut G. Katzgraber, I. A. Campbell
We study numerically the scaling correction to the internal energy per spin as a function of system size and temperature in a variety of Ising and vector spin glasses. From a stand…