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Author

Jo, Wook
Sustainable Functional Ceramics Lab
Research Interests
  • Lead-free piezoceramics, ultra - low temperature sintering, ferroelectrics, relaxor ferroelectrics, 2D materials, magnetoelectric materials, multiferroics

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In situ electric field induced domain evolution in Ba(Zr0.2Ti0.8)O3-0.3(Ba0.7Ca0.3)TiO3ferroelectrics

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Title
In situ electric field induced domain evolution in Ba(Zr0.2Ti0.8)O3-0.3(Ba0.7Ca0.3)TiO3ferroelectrics
Author
Zakhozheva M.Schmitt, Ljubomira AnaAcosta, M. VazquezJo, WookRodel, JurgenKleebe, Hans Joachim
Keywords
Domain evolution; Electric field induced; TiO
Issue Date
201409
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.105, no.11, pp.1 - 4
Abstract
In this work, the lead-free Ba(Zr0.2Ti0.8)O3-0.3(Ba0.7Ca0.3)TiO3piezoelectric ceramic was investigated in situ under an applied electric field by transmission electron microscopy. Significant changes in domain morphology of the studied material have been observed under an applied electric field. During the poling process, the domain configurations disappeared, forming a single-domain state. This multi- to single-domain state transition occurred with the formation of an intermediate nanodomain state. After removing the electric field, domain configurations reappeared. Selected area electron diffraction during electrical poling gave no indication of any structural changes as for example reflection splitting. Rather, a contribution of the extrinsic effect to the piezoelectric response of the Ba(Zr0.2Ti0.8)O3-0.3(Ba0.7Ca0.3)TiO3was found to be dominant.
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DOI
http://dx.doi.org/10.1063/1.4896048
ISSN
0003-6951
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MSE_Journal Papers
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