Effect of electric field and temperature on average structure and domain wall motion in 0.93Bi(0.5)Na(0.5)TiO(3)-0.07BaTiO(3) ceramic
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Date
2013-06-24
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Hindawi Publishing Corporation
Abstract
In situ neutron powder diffraction patterns and dielectric spectra of 0.93Bi0.5Na0.5TiO3-0.07BaTiO3 ceramic were investigated under different electrical fields and temperatures. An electric-field-induced phase transition from metrically cubic to metrically tetragonal, associated with strong domain wall motion, occurs. Such induced phase and domain wall motion are unchanged until the high-temperature phase transition occurs from metrically tetragonal to metrically cubic. All these changes are irrelevant to the observed depolarization temperature (75°C). The depolarization behaviour is thus suggested to be associated with the local structure caused by the octahedral tilt twinning disorder. © 2013, Jian Wang et al.
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Keywords
Electric fields, Temperature dependence, Depolarization, Monocrystals, Dielectric materials, Neutron diffraction, Phase transformations
Citation
Wang, J., Liu, Y., Studer, A., Norén, L., & Withers, R. (2013). Effect of Electric Field and Temperature on Average Structure and Domain Wall Motion in 0.93Bi(0.5)Na(0.5)TiO(3)-0.07BaTiO(3) Ceramic. Advances in Condensed Matter Physics, 2013, 830971.
http://dx.doi.org/10.1155/2013/830971