Search Results - subject:"Ising Model"

The site diluted transverse spin-1 Ising model with a longitudinal crystal-field

Htoutou, K.; Ainane, A.; Saber, M.; de Miguel, J.J. - In: Physica A: Statistical Mechanics and its Applications 358 (2005) 1, pp. 184-196

The site diluted transverse spin-1 Ising model with a longitudinal crystal field on a square lattice is investigated …

Persistent link: https://www.econbiz.de/10011064185

The democracy–ochlocracy–dictatorship transition in the Sznajd model and in the Ising model

Schneider, Johannes J.; Hirtreiter, Christian - In: Physica A: Statistical Mechanics and its Applications 353 (2005) C, pp. 539-554

Since its introduction in 2000, the Sznajd model has been assumed to simulate a democratic community with two parties. The main flaw in this model is that a Sznajd system freezes in the long term in a non-democratic state, which can be either a dictatorship or a stalemate configuration. Here we...

Persistent link: https://www.econbiz.de/10010588449

A note on the Ising models with four-spin interactions

Kaneyoshi, T. - In: Physica A: Statistical Mechanics and its Applications 353 (2005) C, pp. 297-308

-field approximation, using the differential operator technique. The results indicate that the Ising model with a nearest-neighbor four …

Persistent link: https://www.econbiz.de/10010589818

Aperiodic magnetic models on the Wheatstone hierarchical lattice

Almeida, A.C.; Andrade, R.F.S. - In: Physica A: Statistical Mechanics and its Applications 357 (2005) 1, pp. 181-186

behavior of aperiodic Ising model on planar lattices. …

Persistent link: https://www.econbiz.de/10010590534

Thermodynamic and magnetic properties of a mixed Ising system on a triangular array in presence of longitudinal field

Aouzi, M.; El Hafidi, M.; Sakhaf, E.M. - In: Physica A: Statistical Mechanics and its Applications 345 (2005) 3, pp. 575-590

Using the effective-field theory with correlations (EFT), the effects of a longitudinal field on the magnetic properties of a ferrimagnetic system, consisting of two triangular magnetic sublattices A and B (with a coordination number z=6) with spins SA=12 and SB=32, are investigated. The...

Persistent link: https://www.econbiz.de/10010591011

Finite-size scaling at first- and second-order phase transitions of Baxter–Wu model

Martinos, S.S.; Malakis, A.; Hadjiagapiou, I. - In: Physica A: Statistical Mechanics and its Applications 355 (2005) 2, pp. 393-407

corresponding theory of Binder and Landau for the Ising model [Binder and Landau, Phys. Rev. B 30 (1984) 1477]. We perform numerical …

Persistent link: https://www.econbiz.de/10010591119

Computer simulations at the fixed point using an inverse renormalization group transformation

Ron, Dorit; Swendsen, Robert H.; Brandt, Achi - In: Physica A: Statistical Mechanics and its Applications 346 (2005) 3, pp. 387-399

Following Brandt and Ron's suggestion of inverting the renormalization group transformation used in Monte Carlo renormalization, it is shown that efficient computer simulations of the fixed point of the transformation can be carried out on very large systems without critical slowing down. We...

Persistent link: https://www.econbiz.de/10010591370

Temperature effects on the dynamics of the 1-D transverse Ising model with four-spin interactions

Florencio, J.; de Alcantara Bonfim, O.F. - In: Physica A: Statistical Mechanics and its Applications 344 (2004) 3, pp. 498-503

. Among them, the transverse Ising model with multi-spin interactions, regarded as one of the simplest with non … transverse Ising model with four-spin interactions. The model is relevant to the physics of poly(vinylidene fluoride …

Persistent link: https://www.econbiz.de/10010872391

Critical finite-size scaling of magnetization distribution function for Baxter–Wu model

Martinos, S.S.; Malakis, A.; Hadjiagapiou, I. - In: Physica A: Statistical Mechanics and its Applications 331 (2004) 1, pp. 182-188

the scaling function does not conform to the corresponding function for the usual Ising model. An analytic expression that …

Persistent link: https://www.econbiz.de/10010873784

A roughening mechanism on a Bethe lattice

Issigoni, M.E.; Paraskevaidis, C.E. - In: Physica A: Statistical Mechanics and its Applications 337 (2004) 1, pp. 109-116

The possibility of a diffuse interface of an Ising model on a Cayley tree with four nearest neighbors is illustrated …

Persistent link: https://www.econbiz.de/10010873843