Navegação Ciências Exatas e da Terra por Autor "Nobre, Fernando Dantas"
Resultados 1-2 de 2
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Nonlinear susceptibility of a quantum spin glass under uniform transverse and random longitudinal magnetic fields
Magalhaes, Sergio Garcia; Morais Junior, Carlos Alberto Vaz de; Zimmer, Fábio Mallmann; Lazo, Matheus Jatkoske; Nobre, Fernando Dantas (2017) [Artigo de periódico]The interplay between quantum fluctuations and disorder is investigated in a quantum spin-glass model, in the presence of a uniform transverse field , as well as of a longitudinal random field hi , which follows a Gaussian ... -
Spin-glass phase transition and behavior of nonlinear susceptibility in the Sherrington-Kirkpatrick model with random fields
Morais Junior, Carlos Alberto Vaz de; Zimmer, Fábio Mallmann; Lazo, Matheus Jatkoske; Magalhaes, Sergio Garcia; Nobre, Fernando Dantas (2016) [Artigo de periódico]The behavior of the nonlinear susceptibility χ3 and its relation to the spin-glass transition temperature Tf in the presence of random fields are investigated. To accomplish this task, the Sherrington-Kirkpatrick model is ...