75 citations · 249 across the 13 of their papers we have counts for
13 papers
Macroscopically constrained Wang-Landau method for systems with multiple order parameters and its application to drawing complex phase diagrams
Chor-Hoi Chan, Gregory Brown, Per Arne Rikvold
A generalized approach to Wang-Landau simulations, macroscopically constrained Wang-Landau, is proposed to simulate the density of states of a system with multiple macroscopic orde…
Monte Carlo Studies of the Ising Antiferromagnet with a Ferromagnetic Mean-field Term
Gregory Brown, Per Arne Rikvold, Seiji Miyashita
The unusual thermodynamic properties of the Ising antiferromagnet supplemented with a ferromagnetic, mean-field term are outlined. This simple model is inspired by more realistic m…
The Transition State in Magnetization Reversal
G. Brown, M. A. Novotny, P. A. Rikvold
We consider a magnet with uniaxial anisotropy in an external magnetic field along the anisotropy direction, but with a field magnitude smaller than the coercive field. There are th…
Determining the Saddle Point in Micromagnetic Models of Magnetization Switching
Gregory Brown, M. A. Novotny, Per Arne Rikvold
A numerical model of single-domain nanoscale iron magnets fabricated using scanning-microscope-assisted chemical vapor deposition is simulated using finite-temperature micromagneti…
Dynamics of Magnetization Reversal in Models of Magnetic Nanoparticles and Ultrathin Films
Per Arne Rikvold, Gregory Brown, Steven J. Mitchell +1
We discuss numerical and theoretical results for models of magnetization switching in nanoparticles and ultrathin films. The models and computational methods include kinetic Ising…
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…