Chew, Khian Hooi and Tilley, D.R. and Wang, C.L. and Shin, F.G. and Chan, H.L.W. (2002) Theory of phase transitions in second-order ferroelectric films: effects of surfaces and surface-induced stresses on polarization. Solid State Communications, 123 (10). pp. 457-462. ISSN 0038-1098, DOI https://doi.org/10.1016/s0038-1098(02)00253-3.
Full text not available from this repository.Abstract
The Landau-Devonshire theory is used to study the inter-relationship between polarization and stress in a second-order ferroelectric thin film, where both polarization and stress are in-plane. The intrinsic effects of surfaces and surface-induced stresses on polarization are considered by the introduction of extrapolation lengths in the formulation. Numerical calculations are made for a freestanding ferroelectric film, which is symmetric with respect to mid plane. The study is performed under the assumption that the polarization is enhanced or suppressed near the film surface. For a film with polarization enhanced near the surface, it is assumed that the surface tends to expand thus inducing a surface-tensile stress ('tensile' surface). Surface-induced compressive stress is assumed to exhibit in surface with polarization suppressed near surface ('compressive' surface) It is shown that a diminishing film size (thickness) has a strong influence on polarization and stress. (C) 2002 Elsevier Science Ltd. All rights reserved.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Additional Information: | Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA |
| Uncontrolled Keywords: | Ferroelectrics; Thin Films; Phase Transitions |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Miss Malisa Diana |
| Date Deposited: | 16 Aug 2013 02:04 |
| Last Modified: | 27 Aug 2019 07:29 |
| URI: | http://eprints.um.edu.my/id/eprint/8203 |
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