Metastable behavior of the spin-s Ising and Blume-Capel ferromagnets: A Monte Carlo study

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Naskar M., Acharyya M., VATANSEVER E., Fytas N. G.

PHYSICAL REVIEW E, vol.104, no.1, 2021 (SCI-Expanded) identifier identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 104 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.1103/physreve.104.014107
  • Journal Name: PHYSICAL REVIEW E
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Compendex, EMBASE, INSPEC, MEDLINE, zbMATH
  • Dokuz Eylül University Affiliated: Yes

Abstract

We present an extensive Monte Carlo investigation of the metastable lifetime through the reversal of the magnetization of spin-s Ising and Blume-Capel models, where s = {1/2, 1, 3/2, 2, 5/2, 3, 7/2}. The mean metastable lifetime (or reversal time) is studied as a function of the applied magnetic field, and for both models it is found to obey the Becker-During theory, as was initially developed for the case of an s = 1/2 Ising ferromagnet within the classical nucleation theory. Moreover, the decay of the metastable volume fraction nicely follows Avrami's law for all values of s and for both models considered.