Monte Carlo study of relaxor systems: A minimum model of Pb(In 1/2Nb1/2)O3

Yusuke Tomita, Takeo Kato, Kazuma Hirota

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Abstract

We examine a simple model of Pb(In1/2Nb1/2)O 3 (PIN), which includes both long-range dipole-dipole interaction and random local anisotropy. An improved algorithm optimized for long-range interaction has been applied to efficient large-scale Monte Carlo simulation. We demonstrate that the phase diagram of PIN is qualitatively reproduced by this minimum model. Some characteristic features of relaxors such as nanoscale domain formation, slow dynamics, and dispersive dielectric responses are also examined.

Original languageEnglish
Article number023001
JournalJournal of the Physical Society of Japan
Volume79
Issue number2
DOIs
Publication statusPublished - 2010 Feb 1

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Keywords

  • Antiferroelectric phase transition
  • Dispersive dielectric responses
  • Domain formation
  • Ferroelectric phase transition
  • Monte Carlo algorithm
  • Pb(InNb)O
  • Relaxors
  • Slow dynamics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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