Wysin, Gary M.Moura-Melo, W. A.Mól, L. A. S.Pereira, A. R.2013-07-112013-07-112013-04-01http://hdl.handle.net/2097/15967Dynamical effects under geometrical frustration are considered in a model for artificial spin ice on a square lattice in two dimensions. Each island of the spin ice has a three-component Heisenberg-like dipole moment subject to shape anisotropies that influence its direction. The model has real dynamics, including rotation of the magnetic degrees of freedom, going beyond the Ising-type models of spin ice. The dynamics is studied using a Langevin equation solved via a second-order Heun algorithm. Thermodynamic properties such as the specific heat are presented for different couplings. A peak in specific heat is related to a type of melting-like phase transition present in the model. Hysteresis in an applied magnetic field is calculated for model parameters where the system is able to reach thermodynamic equilibrium.en-USAttribution 3.0 Unported (CC BY 3.0)Condensed matterArticle (publisher version)