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Monte Carlo Study of Relaxor Systems: A Minimum Model of Pb(In1/2Nb1/2)O3

Source: J. Phys. Soc. Jpn. 79, 023001 (2010); doi:10.1143/JPSJ.79.023001

Issue Date: 8 March 2010

PUBLICATION DATA
ISSN:
1553-9644 (online)
Publisher:
AIP is a member of CrossRef JSAP
Yusuke Tomita
Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan

Takeo Kato
Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan

Kazuma Hirota
Department of Earth and Space Science, Faculty of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
We examine a simple model of Pb(In1/2Nb1/2)O3 (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. ©2010

(As supplied by publisher.)

Permalink: http://dx.doi.org/10.1143/JPSJ.79.023001
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