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

Yusuke Tomita; Takeo Kato; Kazuma Hirota

doi:10.1143/JPSJ.79.023001

Monte Carlo study of relaxor systems: A minimum model of Pb(In _1/2Nb_1/2)O₃

Yusuke Tomita, Takeo Kato, Kazuma Hirota

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We examine a simple model of Pb(In_1/2Nb_1/2)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 language	English
Article number	023001
Journal	journal of the physical society of japan
Volume	79
Issue number	2
DOIs	https://doi.org/10.1143/JPSJ.79.023001
Publication status	Published - 2010 Feb
Externally published	Yes

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)

Access to Document

10.1143/JPSJ.79.023001

Cite this

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

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.",

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

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AU - Kato, Takeo

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AB - 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.

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KW - Dispersive dielectric responses

KW - Domain formation

KW - Ferroelectric phase transition

KW - Monte Carlo algorithm

KW - Pb(InNb)O

KW - Relaxors

KW - Slow dynamics

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