265 citations · 3.7k across the 158 of their papers we have counts for
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Halide Adsorption on Single-crystal Silver Substrates: Dynamic Simulations and ab-initio Density-functional Theory
S. J. Mitchell, Sanwu Wang, P. A. Rikvold
We investigate the static and dynamic behaviors of a Br adlayer electrochemically deposited onto single-crystal Ag(100) using an off-lattice model of the adlayer. Unlike previous s…
Scaling Analysis of Surfactant Templated Polyacrylamide Gel Surfaces
Mukundan Chakrapani, S. J. Mitchell, D. H. Van Winkle +1
Surfaces of surfactant-templated polyacrylamide hydrogels were imaged by atomic force microscopy (AFM), and the surface morphology was studied by numerical scaling analysis. The te…
Going through Rough Times: from Non-Equilibrium Surface Growth to Algorithmic Scalability
G. Korniss, M. A. Novotny, P. A. Rikvold +2
Efficient and faithful parallel simulation of large asynchronous systems is a challenging computational problem. It requires using the concept of local simulated times and a synchr…
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…
Soft versus Hard Dynamics for Field-driven Solid-on-Solid Interfaces
Per Arne Rikvold, Miroslav Kolesik
Analytical arguments and dynamic Monte Carlo simulations show that the microstructure of field-driven Solid-on-Solid interfaces depends strongly on the dynamics. For nonconservativ…
Numerical Confirmation of Late-time t^{1/2} Growth in Three-dimensional Phase Ordering
Gregory Brown, Per Arne Rikvold
Results for the late-time regime of phase ordering in three dimensions are reported, based on numerical integration of the time-dependent Ginzburg-Landau equation with nonconserved…
Effects of D-strain, g-strain, and dipolar interactions on EPR linewidths of the molecular magnets Fe8 and Mn12
Kyungwha Park, M. A. Novotny, N. S. Dalal +2
Electron paramagnetic resonance (EPR) measurements on single crystals of the molecular magnets Fe and Mn reveal complex nonlinearities in the linewidths as functions of…
Ab initio calculations for bromine adlayers on the Ag(100) and Au(100) surfaces: the c(2x2) structure
Sanwu Wang, Per Arne Rikvold
Ab initio total-energy density-functional methods with supercell models have been employed to calculate the c(2x2) structure of the Br-adsorbed Ag(100) and Au(100) surfaces. The at…
Langevin Simulation of Thermally Activated Magnetization Reversal in Nanoscale Pillars
Gregory Brown, M. A. Novotny, Per Arne Rikvold
Numerical solutions of the Landau-Lifshitz-Gilbert micromagnetic model incorporating thermal fluctuations and dipole-dipole interactions (calculated by the Fast Multipole Method) a…