Search Results - subject:"spin models"

Boundary condition histograms for modulated phases

Benakli, M.; Gabay, M.; Saslow, W.M. - In: The European Physical Journal B - Condensed Matter and … 1 (1998) 2, pp. 197-204

Persistent link: https://www.econbiz.de/10009282310

Broad histogram Monte Carlo

Oliveira, P.M.C. de; Penna, T.J.P.; Herrmann, H.J. - In: The European Physical Journal B - Condensed Matter and … 1 (1998) 2, pp. 205-208

Persistent link: https://www.econbiz.de/10009283014

Charge correlations in the weakly doped t-J model calculated by projection technique

Vojta, M.; Becker, K.W. - In: The European Physical Journal B - Condensed Matter and … 3 (1998) 4, pp. 427-435

Persistent link: https://www.econbiz.de/10010843654

Quantum phase transition in spin glasses with multi-spin interactions

Nieuwenhuizen, Theo M.; Ritort, Felix - In: Physica A: Statistical Mechanics and its Applications 250 (1998) 1, pp. 8-45

We examine the phase diagram of the p-interaction spin glass model in a transverse field. We consider a spherical version of the model and compare with results obtained in the Ising case. The analysis of the spherical model, with and without quantization, reveals a phase diagram very similar to...

Persistent link: https://www.econbiz.de/10010871828

Explicit thermostatics of Stanley's n-vector model on the harmonic chain by Fourier analysis

Junker, Georg; Leschke, Hajo; Zan, Ingbert - In: Physica A: Statistical Mechanics and its Applications 237 (1997) 1, pp. 257-284

model belongs to a rather general class of classical spin models in one dimension. The members of this class are … abstract Fourier analysis. This allows to derive rather explicit results for any member of the aforementioned class of spin … models. We present an exact closed-form expression as well as a high- and a low-temperature expansion for the free energy of …

Persistent link: https://www.econbiz.de/10010587593

The short-time behaviour of a kinetic Ashkin-Teller model on the critical line

Li, Z.B.; Liu, X.W.; Schülke, L.; Zheng, B. - In: Physica A: Statistical Mechanics and its Applications 245 (1997) 3, pp. 485-493

We simulate the kinetic Ashkin-Teller model with both ordered and disordered initial states, evolving in contact with a heat-bath at the critical temperature. The power-law scaling behaviour for the magnetic order and electric order are observed in the early time stage. The values of the...

Persistent link: https://www.econbiz.de/10011058766

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