4 papers · 1 filter
Improving Wang-Landau sampling with adaptive windows
A. G. Cunha-Netto, A. A. Caparica, Shan-Ho Tsai +2
Wang-Landau sampling (WLS) of large systems requires dividing the energy range into "windows" and joining the results of simulations in each window. The resulting density of states…
Simulations of a classical spin system with competing superexchange and double-exchange interactions
Shan-Ho Tsai, D. P. Landau
Monte-Carlo simulations and ground-state calculations have been used to map out the phase diagram of a system of classical spins, on a simple cubic lattice, where nearest-neighbor…
Effect of interfacial coupling on the magnetic ordering in ferro-antiferromagnetic bilayers
Shan-Ho Tsai, D. P. Landau, Thomas C. Schulthess
Monte Carlo simulations have been used to study magnetic ordering in coupled anisotropic ferro/antiferromagnetic (FM/AFM) films of classical Heisenberg spins. We consider films wit…
Exact Partition Functions for Potts Antiferromagnets on Cyclic Lattice Strips
Robert Shrock, Shan-Ho Tsai
We present exact calculations of the zero-temperature partition function of the -state Potts antiferromagnet on arbitrarily long strips of the square, triangular, and kagomé lat…