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Domain Wall Width in Different Ferroelectrics via Perturbation Route
Department of Electrical Engineering & Computer Science, University of Toledo, Toledo, USA
Department of Materials Science, Pennsylvania State University, USA
Department of Materials Science and Engineering, University of Florida, Gainesville, USA
Dumkal Institute of Engineering and Technology, West Bengal University of Technology, Dumkal, India
Department of Mathematics, Government College of Engineering & Leather Technology, Kolkata, India
- 1 Department of Electrical Engineering & Computer Science, University of Toledo, Toledo, USA
- 2 Department of Materials Science, Pennsylvania State University, USA
- 3 Department of Materials Science and Engineering, University of Florida, Gainesville, USA
- 4 Dumkal Institute of Engineering and Technology, West Bengal University of Technology, Dumkal, India
- 5 Department of Mathematics, Government College of Engineering & Leather Technology, Kolkata, India
World Journal of Condensed Matter Physics·Volume 02 (2012)·Pages 91–95·Published 17 May 2012·DOI10.4236/wjcmp.2012.22016
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Abstract
The domains are of fundamental interest for engineering a ferroelectric material. The domain wall and its width control the ferroelectric behavior to a great extent. The stability of polarization in the context of Landau-Ginzburg free energy functional has been worked out in a previous work by a perturbation approach, where two limits of domain wall width were estimated within the stability zone and they were also found to correspond well with the data on lithium niobate and lithium tantalate. In the present work, it is shown that this model is valid for a wide range of ferroelectric materials and also for a given ferroelectric, such as lithium niobate with different levels of impurities, which are known to affect the domain wall width.
KeywordsFerroelectricsDomain WidthImpurity EffectPoling Field
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