Nonequilibrium random-field Ising model on a diluted triangular lattice

Abstract

We study critical hysteresis in the random-field Ising model (RFIM) on a two-dimensional periodic lattice with a variable coordination number $z_{eff}$ in the range $3\le z_{eff}\le 6$. We find that the model supports critical behavior in the range $4<z_{eff}\le 6$, but the critical exponents are independent of $z_{eff}$. The result is discussed in the context of the universality of nonequilibrium critical phenomena and extant results in the field.

12 pages, 10 figures, to be published in Phys Rev E

References in corpus (1)

• Dynamics of k-core percolation