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A Blume–Capel spin glass with competing crystal-field interactions on a hierarchical lattice

Snowman, Daniel P. - In: Physica A: Statistical Mechanics and its Applications 390 (2011) 9, pp. 1505-1515

Renormalization-group methods are used with a hierarchical lattice to model a Blume–Capel spin glass with annealed vacancies and competing crystal-field interactions. The strength of competing cross-link interactions is progressively increased as the effects, upon the phase diagrams, are...

Persistent link: https://www.econbiz.de/10010589250

Numerical study of the two-replica overlap of the 3D Edwards–Anderson Ising spin glass

Berg, Bernd A; Billoire, Alain; Janke, Wolfhard - In: Physica A: Statistical Mechanics and its Applications 321 (2003) 1, pp. 49-58

We present results of recent high-statistics Monte Carlo simulations of the Edwards–Anderson Ising spin-glass model in …

Persistent link: https://www.econbiz.de/10010589629

The Sherrington–Kirkpatrick spin glass model in the presence of a random field with a joint Gaussian probability density function for the exchange interactions and random fields

Hadjiagapiou, Ioannis A. - In: Physica A: Statistical Mechanics and its Applications 397 (2014) C, pp. 1-16

reflect real systems. Such a class of systems is the spin glass one, which combines randomness and frustration. The … Sherrington–Kirkpatrick Ising spin glass with random couplings in the presence of a random magnetic field is investigated in …

Persistent link: https://www.econbiz.de/10011057759

Detailed structure of configuration space and its importance on ergodic separation of ±J Ising lattices

Vogel, E.E; Ramirez-Pastor, A.J; Nieto, F - In: Physica A: Statistical Mechanics and its Applications 310 (2002) 3, pp. 384-396

A complete and exact characterization of the configuration space of 2-D ±J Ising lattices is performed. A new algorithm …

Persistent link: https://www.econbiz.de/10011062760

Percolating spin-glass domains in diluted ±J square lattices

Vogel, E.E; Contreras, S; Osorio, M.A; … - In: Physica A: Statistical Mechanics and its Applications 266 (1999) 1, pp. 425-429

Ising lattice is studied. The concentration of antiferromagnetic interactions, called x, is varied in the range [0 …

Persistent link: https://www.econbiz.de/10011057024