19 citations · 64 across the 8 of their papers we have counts for
4 papers · 1 filter
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…