Modulated replica symmetry breaking schemes for antiferromagnetic spin glasses

Details Modulated replica symmetry breaking schemes for antiferromagnetic spin glasses Modulated replica symmetry breaking schemes for antiferromagnetic spin glasses

2001-06-05

arxiv.org/abs/cond-mat/0106066v3

Physics

Condensed Matter

Disordered Systems and Neural Networks

6 pages, 6 eps-figures

Scientific paper

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.

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