In situ electric field induced domain evolution in Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}-0.3(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} ferroelectrics
- Institute of Applied Geosciences, Technische Universität Darmstadt, Schnittspahnstraße 9, 64287 Darmstadt (Germany)
- Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Str. 2, 64287 Darmstadt (Germany)
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan 689-798 (Korea, Republic of)
In this work, the lead-free Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}-0.3(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} piezoelectric 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(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}-0.3(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} was found to be dominant.
- OSTI ID:
- 22303526
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 11 Vol. 105; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CERAMICS
DOMAIN STRUCTURE
ELECTRIC FIELDS
ELECTRON DIFFRACTION
FERROELECTRIC MATERIALS
OXYGEN COMPOUNDS
PIEZOELECTRICITY
REFLECTION
TITANATES
TITANIUM COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
ZIRCONIUM COMPOUNDS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CERAMICS
DOMAIN STRUCTURE
ELECTRIC FIELDS
ELECTRON DIFFRACTION
FERROELECTRIC MATERIALS
OXYGEN COMPOUNDS
PIEZOELECTRICITY
REFLECTION
TITANATES
TITANIUM COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
ZIRCONIUM COMPOUNDS