Abstract
We define modulated replica symmetry breaking (RSB) schemes which combine tree- and wave- like structures. A modulated scheme and unmodulated RSB are evaluated at 1-step level for a semicon- ductor 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. PACS. 68.35.Rh Phase transitions and critical phenomena - 75.10.Nr Spin glass and other random models
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