Landau theoretical interpretation of domain and domain walls in ferroelectric ferroics

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dc.contributor.authorRwenyagila, E. R.
dc.contributor.authorMwanga, S. F.
dc.date.accessioned2020-03-25T08:27:30Z
dc.date.available2020-03-25T08:27:30Z
dc.date.issued2006
dc.descriptionFull Text Article. Also available at: http://www.arpnjournals.org/jeas/research_papers/rp_2018/jeas_0118_6649.pdfen_US
dc.description.abstractIn this paper some behaviors of domain and domain walls in perovskite ferroics were theoretically investigated. Landau type theory was used to examine the phenomenological properties of domains and domain walls in ferroelectric perovskite materials. Landau predictions on the prototype ferroelectric BaTiO3 showed that it has a stable tetragonal structure at room temperature. The number of domains in the three ferroelectric phases of BaTiO3 was also calculated. The results confirmed six, eight and twelve domain states in the tetragonal, rhombohedral and orthorhombic structures of BaTiO3, respectively. The respective spontaneous polarization and domain wall thickness in the stable tetragonal BaTiO3 have values of 0.26 Cm-2 and 1.63nm at room temperature. Analytical and numerical solutions for the relationship between temperature and domain wall thickness and for the spatial distribution of polarizations inside the domain wall are also determined and discussed.en_US
dc.identifier.citationRwenyagila, E. R., & Mwanga, S. F. (2006). Landau theoretical interpretation of domain and domain walls in ferroelectric ferroics. ARPN Journal of Engineering and Applied Sciences, 13 (1), 160-174.en_US
dc.identifier.otherhttp://www.arpnjournals.org/jeas/research_papers/rp_2018/jeas_0118_6649.pdf
dc.identifier.urihttp://hdl.handle.net/20.500.12661/2369
dc.language.isoenen_US
dc.publisherAsian Research Publishing Networken_US
dc.subjectDomain wallsen_US
dc.subjectLandauen_US
dc.subjectFerroelectricityen_US
dc.subjectLandau theoryen_US
dc.subjectSymmetryen_US
dc.subjectPerovskite ferroicsen_US
dc.titleLandau theoretical interpretation of domain and domain walls in ferroelectric ferroicsen_US
dc.typeArticleen_US
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