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Title: Monte Carlo simulation of the dielectric susceptibility of Ginzburg-Landau mode relaxors
Authors: Liu, J.-M.
Wang, X.
Chan, Helen L. W.
Choy, Chung-loong
Subjects: Relaxor ferroelectrics
Ferroelectric transitions
Monte Carlo methods
Optical susceptibility
Dielectric relaxation
Ginzburg-Landau theory
Issue Date: 24-Mar-2004
Publisher: American Physical Society
Source: Physical review B, condensed matter and materials physics, 24 Mar. 2004, v. 69, 094114, p. 1-6.
Abstract: The electric dipole configuration and dielectric susceptibility of a Ginzburg-Landau model ferroelectric lattice with randomly distributed defects are simulated using the Monte Carlo method. The simulated characteristics of the lattice configuration and dielectric susceptibility indicate that the model lattice evolves from a normal ferroelectric state to a typical relaxor state with increasing defect concentration. Consequently, the energy and dielectric susceptibility characteristics associated with the ferroelectric phase transitions become smeared. The simulated results approve the applicability of the Ginzburg-Landau model in approaching relaxor ferroelectrics.
Rights: Physical Review B © 2004 American Physical Society. The Journal's web site is located at
Type: Journal/Magazine Article
ISSN: 0163-1829
Appears in Collections:AP Journal/Magazine Articles

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