Breakdown of self-similar scaling in the two-dimensional random-field Ising model: A Monte Carlo study

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

  • E. T. Gawlinski
  • S. Kumar
  • Martin Grant
  • J. D. Gunton
  • Kimmo Kaski

Organisaatiot

  • Temple University

Kuvaus

We have simulated the two-dimensional ferromagnetic Ising model in a random magnetic field with spin-flip dynamics. After the system is deeply quenched into the unstable region of the phase diagram, we observe novel dynamical behavior, during an early-to-intermediate time regime, for the average size of the growing domains, R¯. We find that self-similar scaling for the structure factor [that is, scaling to a single time-dependent length such as R¯(t)] breaks down for long times. Our results may have relevance to the problem of island-growth kinetics in some chemisorbed systems.

Yksityiskohdat

AlkuperäiskieliEnglanti
Sivut1575-1583
JulkaisuPhysical Review B
Vuosikerta32
Numero3
TilaJulkaistu - 1985
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

ID: 9954238