The European Physical Journal Special Topics

, Volume 226, Issue 4, pp 789–804

Scaling and universality in the phase diagram of the 2D Blume-Capel model

  • Johannes Zierenberg
  • Nikolaos G. Fytas
  • Martin Weigel
  • Wolfhard Janke
  • Anastasios Malakis
Review

DOI: 10.1140/epjst/e2016-60337-x

Cite this article as:
Zierenberg, J., Fytas, N.G., Weigel, M. et al. Eur. Phys. J. Spec. Top. (2017) 226: 789. doi:10.1140/epjst/e2016-60337-x
Part of the following topical collections:
  1. Recent Advances in Phase Transitions and Critical Phenomena

Abstract

We review the pertinent features of the phase diagram of the zero-field Blume-Capel model, focusing on the aspects of transition order, finite-size scaling and universality. In particular, we employ a range of Monte Carlo simulation methods to study the 2D spin-1 Blume-Capel model on the square lattice to investigate the behavior in the vicinity of the first-order and second-order regimes of the ferromagnet-paramagnet phase boundary, respectively. To achieve high-precision results, we utilize a combination of (i) a parallel version of the multicanonical algorithm and (ii) a hybrid updating scheme combining Metropolis and generalized Wolff cluster moves. These techniques are combined to study for the first time the correlation length of the model, using its scaling in the regime of second-order transitions to illustrate universality through the observed identity of the limiting value of ξ/L with the exactly known result for the Ising universality class.

Copyright information

© EDP Sciences and Springer 2017

Authors and Affiliations

  1. 1.Institut für Theoretische Physik, Universität LeipzigLeipzigGermany
  2. 2.Doctoral College for the Statistical Physics of Complex Systems, Leipzig-Lorraine-Lviv-Coventry (L4)LeipzigGermany
  3. 3.Applied Mathematics Research Centre, Coventry UniversityCoventryUnited Kingdom
  4. 4.Department of PhysicsSection of Solid State Physics, University of Athens, PanepistimiopolisZografouGreece

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