Monte Carlo Study of Relaxor Systems: A Minimum Model for Pb(In${}_{1/2}$Nb${}_{1/2}$)O${}_3$}

Abstract

We examine a simple model for Pb(In${}_{1/2}$Nb${}_{1/2}$)O${}_3$ (PIN), which includes both long-range dipole-dipole interaction and random local anisotropy. A improved algorithm optimized for long-range interaction has been applied for efficient large-scale Monte Carlo simulation. We demonstrate that the phase diagram of PIN is qualitatively reproduced by this minimum model. Some properties characteristic of relaxors such as nano-scale domain formation, slow dynamics and dispersive dielectric responses are also examined.

5 pages, 4 figures

References in corpus (4)

• Exchange Monte Carlo Method and Application to Spin Glass Simulations
• First-principles theory of ferroelectric phase transitions for perovskites: The case of BaTiO3
• Phase transitions in BaTiO${}_3$ from first principles
• Order-N Cluster Monte Carlo Method for Spin Systems with Long-range Interactions

Cited by in corpus (1)

• Relaxor behavior and morphotropic phase boundary in a simple model