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

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

2009-11-10

arxiv.org/abs/0911.1839v2

J. Phys. Soc. Jpn 79, 023001 (2010)

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, 4 figures

Scientific paper

10.1143/JPSJ.79.023001

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.

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