Wetting Effects at a Grain Boundary

D. B. Abraham, Ville Mustonen, A. J. Wood
2004 Physical Review Letters  
We consider a tier of weakened bonds along the center line of a two-dimensional Ising ferromagnet strip as a model of a grain boundary. When an interface traverses such a strip at an angle, whether or not there is a continuous pinning-depinning transition at subcritical temperature depends on this angle and the degree of bond weakening. We also study the relaxation of such a system to its equilibrium state using continuous time Monte Carlo simulation with Kawasaki dynamics; this reveals a
more » ... transport mechanism confined to the grain boundary.
doi:10.1103/physrevlett.93.076101 pmid:15324251 fatcat:ddmgkii3pvggbd33t2mfc6sogy