alexa Investigation of the Flexoelectric Coupling Effect on t
ISSN: 2169-0022

Journal of Material Sciences & Engineering
Open Access

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Research Article

Investigation of the Flexoelectric Coupling Effect on the 180° Domain Wall Structure and Interaction with Defects

Mbarki R1*, Borvayeh L2 and Sabati M3,4

1Department of Mechanical Engineering, The Australian College of Kuwait, Meshraf, Kuwait

2Department of Mathematics, The Australian College of Kuwait, Meshraf, Kuwait

3Department of Electrical Engineering, The Australian College of Kuwait, Meshraf, Kuwait

4The Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute, Department of Radiology, University of Miami, USA

*Corresponding Author:
Mbarki R
Department of Mechanical Engineering
The Australian College of Kuwait, Meshraf, Kuwait
Tel: 96525376111
E-mail:
[email protected]

Received Date: May 28, 2016; Accepted Date: June 14, 2016; Published Date: June 24, 2016

Citation: Mbarki R, Borvayeh L, Sabati M (2016) Investigation of the Flexoelectric Coupling Effect on the 180° Domain Wall Structure and Interaction with Defects. J Material Sci Eng 5:264. doi:10.4172/2169-0022.1000264

Copyright: © 2016 Mbarki R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

A new theory for 180° domain wall in ferroelectric perovskite material is presented in this work. The effect of flexoelectric coupling on the domain structure is analyzed. We show that the 180° domain wall has a mixed character of Ising and Bloch type wall and that the polarization perpendicular to the domain wall is not zero though it is very small compared to the spontaneous polarization in the case of tetragonal Barium Titanate. Finally, we present the effect of the new finding on the domain wall interaction with defects in the material.

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