Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24125
Title: Surface tension and size effect in ferroelectric nanotubes
Authors: Zheng, Y
Woo, CH
Wang, B
Issue Date: 2008
Publisher: IOP Publishing Ltd
Source: Journal of physics condensed matter, 2008, v. 20, no. 13, 135216 How to cite?
Journal: Journal of Physics Condensed Matter 
Abstract: Using a thermodynamic model, linear stability analysis is performed on the associated dynamic Ginsburg-Landau equation for a ferroelectric nanotube. Analytic expressions of the transition temperature and Curie-Weiss relation are derived. The ferroelectric properties of the tube are found to generally depend on its dimensions through effects of the surface tension and near-surface eigenstrain relaxation. Our results also show that the transition temperature and polarization are both enhanced due to the dominance of the effective radial pressures induced by the surface tension, resulting in a remnant polarization and coercive field that may become larger than the bulk values.
URI: http://hdl.handle.net/10397/24125
DOI: 10.1088/0953-8984/20/13/135216
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