Please use this identifier to cite or link to this item: https://doi.org/12/122005
Title: Influence of size-dependent electrostatic energy on the ferroelectric nanodot domain structure by phase field method
Authors: Hong, L.
Soh, A.K.
Liu, S.Y.
Lu, L. 
Issue Date: 2009
Source: Hong, L.,Soh, A.K.,Liu, S.Y.,Lu, L. (2009). Influence of size-dependent electrostatic energy on the ferroelectric nanodot domain structure by phase field method. Journal of Physics D: Applied Physics 42 (12) : -. ScholarBank@NUS Repository. https://doi.org/12/122005
Abstract: A three-dimensional phase field model is proposed to study the effects of size-dependent electrostatic energy on ferroelectric nanodots at room temperature. The simulation results demonstrate that three domain structures exist in different sizes of nanodots, i.e. vortex structure, 90° domain structure and single domain. The periodic distributions of the electrostatic potential and its energy with positive and negative signs across the domain body are the main causes of the formation of the vortex structure. With decreasing nanodot size, the change in the competitiveness between the electrostatic energy and other intrinsic energies induces the formation of a 90° domain structure or a single domain. © 2009 IOP Publishing Ltd.
Source Title: Journal of Physics D: Applied Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/60537
ISSN: 00223727
DOI: 12/122005
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