51 citations · 222 across the 12 of their papers we have counts for
12 papers
A comparative review of recent results on supercritical anomalies in two-dimensional kinetic Ising and Blume-Capel ferromagnets
Gloria M. Buendía, Celeste Mendes, Per Arne Rikvold
Following the unexpected experimental discovery of ``sideband'' peaks in the fluctuation spectrum of thin Co films driven by a slowly oscillating magnetic field with a constant bia…
Numerical Simulation of a Two-Dimensional Blume-Capel Ferromagnet in an Oscillating Magnetic Field with a Constant Bias
Celeste Mendes, Gloria M. Buendia, Per Arne Rikvold
We perform a numerical study of the kinetic Blume-Capel (BC) model to find if it exhibits the metamagnetic anomalies previously observed in the kinetic Ising model for supercritica…
Fluctuations and correlations in an individual-based model of biological coevolution
R. K. P. Zia, Per Arne Rikvold
We extend our study of a simple model of biological coevolution to its statistical properties. Staring with a complete description in terms of a master equation, we provide its rel…
Scaling analysis of a divergent prefactor in the metastable lifetime of a square-lattice Ising ferromagnet at low temperatures
Kyungwha Park, M. A. Novotny, P. A. Rikvold
We examine a square-lattice nearest-neighbor Ising quantum ferromagnet coupled to -dimensional phonon baths. Using the density-matrix equation, we calculate the transition rates…
Thermal and Dynamic Effects in Langevin Simulation of Hysteresis in Nanoscale Pillars
Gregory Brown, M. A. Novotny, P. A. Rikvold
Dynamic quantities related to hysteresis have been measured in micromagnetic simulations of single-domain nanoscale magnets at nonzero temperature. The hysteresis-loop area and mag…
Simulations of metastable decay in two- and three-dimensional models with microscopic dynamics
M. A. Novotny, P. A. Rikvold, M. Kolesik +2
We present a brief analysis of the crossover phase diagram for the decay of a metastable phase in a simple dynamic lattice-gas model of a two-phase system. We illustrate the nuclea…