Modulated replica symmetry breaking schemes for antiferromagnetic spin glasses

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We define modulated replica symmetry breaking (RSB)-schemes which combine tree- and wave-like structures. A modulated scheme and unmodulated RSB are applied at 1-step level to a semiconductor model with antiferromagnetic Korenblit-Shender interaction. By comparison of the free energies we find evidence that a T=0 phase transition in the ferrimagnetic phase leads to a transition between the different RSB-schemes. An embedding factor of Parisi block matrices with sublattice-asymmetrical size is employed as a new variational parameter in the modulated scheme.
6 pages, 6 eps-figures

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Disordered Systems and Neural Networks, Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/17826

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0106066
 http://arxiv.org/abs/cond-mat/0106066

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arXiv