Monte Carlo simulation of ferroelectric domain structure: Electrostatic and elastic strain energy contributions
作者:
B. G. Potter,
B. A. Tuttle,
V. Tikare,
期刊:
AIP Conference Proceedings
(AIP Available online 1900)
卷期:
Volume 535,
issue 1
页码: 173-182
ISSN:0094-243X
年代: 1900
DOI:10.1063/1.1324454
出版商: AIP
数据来源: AIP
摘要:
A lattice-Monte Carlo approach was developed to simulate ferroelectric domain behavior. The model utilizes a Hamiltonian for the total energy that includes electrostatic terms (involving dipole-dipole interactions, local polarization gradients, and applied electric field), and elastic strain energy. The contributions of these energy components to the domain structure and to the overall applied field response of the system were examined. In general, the model exhibited domain structure characteristics consistent with those observed in a tetragonally distorted ferroelectric. Good qualitative agreement between the appearance of simulated electrical hysteresis loops and those characteristic of real ferroelectric materials was found. ©2000 American Institute of Physics.
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