Role of the transverse field in inverse freezing in the fermionic Ising spin-glass model

Abstract

We investigate the inverse freezing in the fermionic Ising spin-glass (FISG) model in a transverse field $\Gamma$. The grand canonical potential is calculated in the static approximation, replica symmetry and one-step replica symmetry breaking Parisi scheme. It is argued that the average occupation per site $n$ is strongly affected by $\Gamma$. As consequence, the boundary phase is modified and, therefore, the reentrance associated with the inverse freezing is modified too.

6 pages, 3 figures, accepted for publication in PRB

References in corpus (6)

• Stable Solution of the Simplest Spin Model for Inverse Freezing
• Spin Glass and ferromagnetism in disordered Cerium compounds
• Inverse Freezing in Mean-Field Models of Fragile Glasses
• Spin-Glass Model for Inverse Freezing
• One-step replica symmetry breaking solution for fermionic Ising spin glass in a transverse field
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Cited by in corpus (3)

• Inverse Transitions in the Ghatak-Sherrington model with Bimodal Random Fields
• Fermionic van Hemmen Spin Glass Model with a Transverse Field
• Stability conditions for fermionic Ising spin-glass models in the presence of a transverse field