Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2009-03-06
Dans Journal of Physics: Conference Series: Vol. 145 - Highly Frustrated Magnetism 2008, Braunschweig : Allemagne (2008)
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
10.1088/1742-6596/145/1/012024
We discuss the nearest neighbour spin ice model in the presence of a magnetic field placed along the cubic [100] direction. As recently shown in Phys. Rev. Lett. 100, 067207, 2008, the symmetry sustaining ordering transition observed at low temperature is a three dimensional Kasteleyn transition. We confirm this with numerical data using a non-local algorithm that conserves the topological constraints at low temperature and from analytic calculations from a Bethe lattice of corner sharing tetrahedra . We present a thermodynamic description of the Kasteleyn transition and discuss the relevance of our results to recent neutron scattering experiments on spin ice materials.
Chalker John T.
Holdsworth Peter C. W.
Jaubert Ludovic D. C.
Moessner Richhild
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