Two-dimensional randomly-frustrated spin 1/2 Heisenberg model

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dc.creatorOitmaa, J.
dc.creatorSushkov, O. P.
dc.date2001-05-17
dc.date.accessioned2026-07-07T12:40:43Z
dc.date.available2026-07-07T12:40:43Z
dc.descriptionWe investigate the properties of S=1/2 Heisenberg clusters with random frustration using exact diagonalizations. This is a model for a quantum spin glass. We show that the average ground state spin is $S \propto \sqrt{N}$, where N is the number of sites. We also calculate the magnetic susceptibility and the spin stiffness and low-energy excitations, and discuss these in terms of a semiclassical picture.
dc.description4 pages, 3 figures, 2 tables
dc.identifierhttps://arxiv.org/abs/cond-mat/0105337
dc.identifierhttp://arxiv.org/abs/cond-mat/0105337
dc.identifierPhys.Rev.Lett.87:167206,2001
dc.identifierdoi:10.1103/PhysRevLett.87.167206
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/219529
dc.subjectStrongly Correlated Electrons
dc.subjectDisordered Systems and Neural Networks
dc.titleTwo-dimensional randomly-frustrated spin 1/2 Heisenberg model
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