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.

arXiv comment6 pages, 3 figures, accepted for publication in PRB

References in corpus (17)

• Inverse melting of the vortex lattice
• Landau theory of quantum spin glasses of rotors and Ising spins
• Inverse melting and inverse freezing: a spin model
• Spin Model for Inverse Melting and Inverse Glass Transition
• 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
• The Ising spin glass in a transverse field. Results of two fermionic models
• Spin-Glass Model for Inverse Freezing
• Quantum critical point in the spin glass-antiferromagnetism competition in Kondo-lattice systems
• Replica symmetry breaking solution for the fermionic Ising spin glass and the Ghatak-Sherrington model
• On exact mappings between fermionic Ising spin glass and classical spin glass models
• Quantum critical effects in mean-field glassy systems
• Parisi-Symmetry of the Many-Body Quantum Theory of randomly interacting fermionic systems
• One-step replica symmetry breaking solution for fermionic Ising spin glass in a transverse field
• Random Magnetic Interactions and Spin Glass Order Competing with Superconductivity: Interference of the Quantum Parisi Phase
• Antiferromagnetic Ising spin glass competing with BCS pairing interaction in a transverse field

Cited by in corpus (9)

• Static critical exponents of the ferromagnetic transition in spin glass re-entrant systems
• Inverse freezing in the Ghatak-Sherrington model with a random field
• Inverse freezing in the Hopfield Fermionic Ising Spin Glass
• Inverse Transitions in the Ghatak-Sherrington model with Bimodal Random Fields
• Inverse transitions in a spin-glass model on a scale-free network
• 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
• Spin-glass splitting in the quantum Ghatak-Sherrington model
• Spin-1 Hopfield model under a random field