PolyU Institutional Repository >
Applied Physics >
AP Journal/Magazine Articles >
Please use this identifier to cite or link to this item:
|Title: ||Simulation of electromechanical responses of ferroelectric ceramics driven by combined alternating electrical and mechanical loadings|
|Authors: ||Lo, Veng-cheong|
Chung, Winnie Wing-yee
Chow, C. K.
|Subjects: ||Lead compounds|
Electric domain walls
|Issue Date: ||1-Jun-2007 |
|Publisher: ||American Institute of Physics|
|Citation: ||Journal of applied physics, 1 June 2007, v. 101, no. 11, 114111, p. 1-6.|
|Abstract: ||The experimental result on dielectric and mechanical properties of PbZrₓTi₁₋ₓO₃ driven by combined alternating electrical and mechanical loadings in various phase differences has been obtained by Zhou et al. [J. Appl. Phys. 96, 6634 (2004)]. This paper presents the numerical simulation of this result using a two-dimensional four state Potts model. In this model, there are four
different dipole orientations to reflect the coexistence of 90° and 180° domain walls. The coupling between the electrical and mechanical responses is implemented by the presence of two different ferroelastic strain states which are associated to the four different dipole orientations. The
interactions of these dipoles and strains together with the mechanical energy density are incorporated into the system Hamiltonian. The enhanced and reduced electromechanical responses when the electric field and the compressive stress are out of phase and in phase, respectively, are reproduced by our model.|
|Description: ||DOI: 10.1063/1.2743819|
|Rights: ||© 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in V. C. Lo, W. W. Y. Chung & S. C. K. Chow, J. Appl. Phys. 101, 114111 (2007) and may be found at http://link.aip.org/link/?jap/101/114111.|
|Type: ||Journal/Magazine Article|
|ISSN: ||0021-8979 (print)|
|Appears in Collections:||AP Journal/Magazine Articles|
All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.