265 citations · 3.7k across the 158 of their papers we have counts for
11 papers · 1 filter
Angular Dependence of Switching Properties in Single Fe Nanopillars
G. Brown, S. M. Stinnett, M. A. Novotny +1
The continued increase in areal densities in magnetic recording makes it crucial to understand magnetization reversal in nanoparticles. We present finite-temperature micromagnetic…
Finite-Temperature Micromagnetics of Hysterisis for Misaligned Single Iron Nanopillars
M. A. Novotny, S. M. Stinnett, G. Brown +1
We present micromagnetic results for the hysterisis of a single magnetic nanopillar which is misaligned with respect to the applied magnetic field. We provide results for both a on…
Low-temperature nucleation in a kinetic Ising model with soft stochastic dynamics
Kyungwha Park, Per Arne Rikvold, Gloria M. Buendia +1
We study low-temperature nucleation in kinetic Ising models by analytical and simulational methods, confirming the general result for the average metastable lifetime, <tau> = A*exp…
Update statistics in conservative parallel discrete event simulations of asynchronous systems
A. Kolakowska, M. A. Novotny, Per Arne Rikvold
We model the performance of an ideal closed chain of L processing elements that work in parallel in an asynchronous manner. Their state updates follow a generic conservative algori…
Projective Dynamics Analysis of Magnetization Reversal
G. Brown, M. A. Novotny, P. A. Rikvold
The computational Projective Dynamics method is used to analyze simulations of magnetization reversal in nanoscale magnetic pillars. It is shown that this method can be used to det…
Punctuated equilibria and 1/f noise in a biological coevolution model with individual-based dynamics
Per Arne Rikvold, R. K. P. Zia
We present a study by linear stability analysis and large-scale Monte Carlo simulations of a simple model of biological coevolution. Selection is provided through a reproduction pr…
Flicker Noise in a Model of Coevolving Biological Populations
Per Arne Rikvold, R. K. P. Zia
We present long Monte Carlo simulations of a simple model of biological macroevolution in which births, deaths, and mutational changes in the genome take place at the level of indi…
Microstructure and velocity of field-driven Ising interfaces moving under a soft stochastic dynamic
Per Arne Rikvold, M. Kolesik
We present theoretical and dynamic Monte Carlo simulation results for the mobility and microscopic structure of 1+1-dimensional Ising interfaces moving far from equilibrium in an a…
Surface scaling analysis of hydrogels: From multiaffine to self-affine scaling
G. M. Buendia, S. J. Mitchell, P. A. Rikvold
We show that smoothing of multiaffine surfaces that are generated by simulating a crosslinked polymer gel by a frustrated, triangular network of springs of random equilibrium lengt…
Suppressing Roughness of Virtual Times in Parallel Discrete-Event Simulations
G. Korniss, M. A. Novotny, H. Guclu +2
In a parallel discrete-event simulation (PDES) scheme, tasks are distributed among processing elements (PEs), whose progress is controlled by a synchronization scheme. For lattice…
Defects, Tunneling, and EPR Spectra of Single-Molecule Magnets
Kyungwha Park, M. A. Novotny, N. S. Dalal +5
We examine theoretically electron paramagnetic resonance (EPR) lineshapes as functions of resonance frequency, energy level, and temperature for single crystals of three different…