title: Relaxation dynamics of a system with a grain boundary.
abstract: Recently an interesting phase transition scenario in the context of a planar Ising system with a grain boundary was revealed [Phys. Rev. Lett. 93, 076101 (2004)]]. In this paper we study in more detail the relaxation dynamics of this system and show how the grain boundary acts as a guide spatially confining matter transport. This is done by performing simulations using the continuous time Monte Carlo algorithm with Kawasaki dynamics. We also set up the problem as a solid-on-solid model and formulate corresponding Langevin equations for the dynamics in two cases, with and without matter conservation.
authors.affiliation: Theoretical Physics, University of Oxford, Oxford OX1 3NP, United Kingdom.
authors.forename: D B
authors.initials: DB
authors.lastname: Abraham
authors.forename: Ville
authors.initials: V
authors.lastname: Mustonen
authors.forename: A J
authors.initials: AJ
authors.lastname: Wood