2005/11/30 by S. Bekhechi, B. W. Southern, A. Peles +2 · 1 citation
Mathematics · Physics and Astronomy · #Antiferromagnetism #Condensed matter physics #Critical exponent #Critical point (mathematics) #Exponent #Geometry #Mathematics #Monte Carlo method #Order (exchange) #Phase transition #Physics #Physics of Superconductivity and Magnetism #Power law #Quantum many-body systems #Scaling #Statistical physics #Statistics #Theoretical and Computational Physics #Universality (dynamical systems) #cond-mat.stat-mech
paper · pdf · doi:10.1103/physreve.74.016109
published as Phys. Rev. E74, 016109 (2006) · 4 pages, 6 figures, largely revised version
arxiv created 2006/03/07 · openalex publication_date 2006/07/17 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Critical scaling and universality in the short-time dynamics for antiferromagnetic models on a three-dimensional stacked triangular lattice are investigated using Monte Carlo simulation. We have determined the critical point by searching for the best power law for the order parameter as a function of time and measured the critical exponents. Our results indicate that it is possible to distinguish weak first-order from second-order phase transitions and confirm that XY antiferromagnetic systems undergo a (weak) first-order phase transition accompanied by pseudocritical scaling.