Monte Carlo studies of the Ising square lattice with competing interactions

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dc.creatorKalz, A.
dc.creatorHonecker, A.
dc.creatorFuchs, S.
dc.creatorPruschke, T.
dc.date2008-09-15
dc.date.accessioned2026-07-07T12:41:57Z
dc.date.available2026-07-07T12:41:57Z
dc.descriptionWe use improved Monte-Carlo algorithms to study the antiferromagnetic 2D-Ising model with competing interactions $J_1$ on nearest neighbour and $J_2$ on next-nearest neighbour bonds. The finite-temperature phase diagram is divided by a critical point at $J_2 = J_1/2$ where the groundstate is highly degenerate. To analyse the phase boundaries we look at the specific heat and the energy distribution for various ratios of $J_2/J_1$. We find a first order transition for small $J_2 > J_1/2$ and the transition temperature suppressed to $T_C=0$ at the critical point.
dc.description4 pages, 4 figures, accepted for publication in the proceedings of the conference on Highly Frustrated Magnets 2008 in Braunschweig
dc.identifierhttps://arxiv.org/abs/0809.2503
dc.identifierhttp://arxiv.org/abs/0809.2503
dc.identifierJ. Phys.: Conf. Ser. 145 (2009) 012051
dc.identifierdoi:10.1088/1742-6596/145/1/012051
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219916
dc.subjectStatistical Mechanics
dc.subjectStrongly Correlated Electrons
dc.titleMonte Carlo studies of the Ising square lattice with competing interactions
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