The Kasteleyn transition in three dimensions: spin ice in a [100] field

Abstract : 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.
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Ludovic Jaubert, J. T. Chalker, Peter Holdsworth, R. Moessner. The Kasteleyn transition in three dimensions: spin ice in a [100] field. HIGHLY FRUSTRATED MAGNETISM 2008, Sep 2008, Braunschweig, Germany. 012024 (7pp), ⟨10.1088/1742-6596/145/1/012024⟩. ⟨ensl-00366133⟩

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