Dynamics and hysteresis in square lattice artificial spin ice
dc.citation.doi | 10.1088/1367-2630/15/4/045029 | en_US |
dc.citation.issue | 4 | en_US |
dc.citation.jtitle | New Journal of Physics | en_US |
dc.citation.spage | 045029 | en_US |
dc.citation.volume | 15 | en_US |
dc.contributor.author | Wysin, Gary M. | |
dc.contributor.author | Moura-Melo, W. A. | |
dc.contributor.author | Mól, L. A. S. | |
dc.contributor.author | Pereira, A. R. | |
dc.contributor.authoreid | wysin | en_US |
dc.date.accessioned | 2013-07-11T21:19:28Z | |
dc.date.available | 2013-07-11T21:19:28Z | |
dc.date.issued | 2013-04-01 | |
dc.date.published | 2013 | en_US |
dc.description.abstract | Dynamical 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_US |
dc.identifier.uri | http://hdl.handle.net/2097/15967 | |
dc.language.iso | en_US | en_US |
dc.relation.uri | https://doi.org/10.1088/1367-2630/15/4/045029 | en_US |
dc.rights | Attribution 3.0 Unported (CC BY 3.0) | |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | |
dc.subject | Condensed matter | en_US |
dc.title | Dynamics and hysteresis in square lattice artificial spin ice | en_US |
dc.type | Article (publisher version) | en_US |