19 citations · 64 across the 8 of their papers we have counts for
8 papers
Nonlinear susceptibility of a quantum spin glass under uniform transverse and random longitudinal magnetic fields
S. G. Magalhaes, C. V. Morais, F. M. Zimmer +2
The interplay between quantum fluctuations and disorder is investigated in a spin-glass model, in the presence of a uniform transverse field , and a longitudinal random field fo…
Spin-glass phase transition and behavior of nonlinear susceptibility in the Sherrington-Kirkpatrick model with random fields
C. V. Morais, F. M. Zimmer, M. J. Lazo +2
The behavior of the nonlinear susceptibility and its relation to the spin-glass transition temperature , in the presence of random fields, are investigated. To accomplis…
Spin-1 Hopfield model under a random field
C. V. Morais, M. J. Lazo, F. M. Zimmer +2
The goal of the present work is to investigate the role of trivial disorder and nontrivial disorder in the three-state Hopfield model under a Gaussian random field. In order to con…
Inverse freezing in the Ghatak-Sherrington model with a random field
C. V. Morais, M. J. Lazo, F. M. Zimmer +1
The present work studies the Ghatak-Sherrington (GS) model in the presence of a magnetic random field (RF). Previous results obtained from GS model without RF suggest that disorder…
Fermionic van Hemmen Spin Glass Model with a Transverse Field
S. G. Magalhaes, F. M. Zimmer, C. V. Morais
In the present work it is studied the fermionic van Hemmen model for the spin glass (SG) with a transverse magnetic field . In this model, the spin operators are written as a bi…
Inverse freezing in the Hopfield Fermionic Ising Spin Glass
S. G. Magalhaes, C. V. Morais, F. M. Zimmer
In this work it is studied the Hopfield fermionic spin glass model which allows interpolating from trivial randomness to a highly frustrated regime. Therefore, it is possible to in…