[J. Phys.: Condens. Matter 20, 224009 (2008) and Phys. Rev. B 79, 125432 (2009)] Nailing down the essentials to optimally catalyze a desired reaction is still a very challenging problem. Not surprisingly, although most production processes in industry are catalyzed, most chemists and engineers are restricted to trial and error when searching for the proper catalyst. The interest on transition (Pt, Ru, Rh, Pd, etc.) and noble (Cu, Ag, and Au) metals surface arises […]

[Phys. Rev. B 72, 174416 (2005) and Phys. Rev. B 74, 226401 (2006)] Developing quantum computing and increasingly smaller memory storage devices has led intense research into the properties of nanoscale magnets, including quantum single-molecule magnets (SMM) and arrays of ferromagnetic nanodots. This goal, however, faces several challenges. One of them is the ever-present inter-magnet interactions, which are directly responsible for the loss of memory of these devices during magnetic relaxation. Since inter-magnet exchange interactions […]

I solve numerically a particular case of the Cahn-Hilliard equation for a 2D system. The animation is for a 200×200 grid, it shows 50 snapshots out of ~500,000 time steps for gamma = 0.5.