Similar Search Results

First-order transition features of the triangular Ising model with nearest- and next-nearest-neighbor antiferromagnetic interactions

Malakis, A.; Fytas, N.G.; Kalozoumis, P. - In: Physica A: Statistical Mechanics and its Applications 383 (2007) 2, pp. 351-371

We implement a new and accurate numerical entropic scheme to investigate the first-order transition features of the triangular Ising model with nearest-neighbor (Jnn) and next-nearest-neighbor (Jnnn) antiferromagnetic interactions in ratio R=Jnn/Jnnn=1. Important aspects of the existing theories...

Persistent link: https://www.econbiz.de/10011063934

Criticality in the randomness-induced second-order phase transition of the triangular Ising antiferromagnet with nearest- and next-nearest-neighbor interactions

Fytas, N.G.; Malakis, A. - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 24, pp. 4950-4958

Using a Wang–Landau entropic sampling scheme, we investigate the effects of quenched bond randomness on a particular case of a triangular Ising model with nearest- (Jnn) and next-nearest-neighbor (Jnnn) antiferromagnetic interactions. We consider the case R=Jnnn/Jnn=1, for which the pure model...

Persistent link: https://www.econbiz.de/10011057875