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Nonlinear electrical properties of glass-ceramics nanocomposites containing ferroelectric nanocrystallites of Bi2VO5.5
Abstract
Nonlinear A.C. impedance measurements were conducted in the 50BiV-50SrBAlO nanocomposite as a function of frequency, temperature and A.C. voltage. This material is ferroelectric below temperature of 730 K, and above 730 K is a good ion-conductor. For this nanocomposite a low A.C. voltage of 1 V rms is enough to observe high nonlinearities. The origin of these nonlinear effects depends on the temperature and frequency. In the high temperature and low frequency region, the nonlinearities are due to interfacial processes. In the low temperatures and higher frequencies, the nonlinearities may be also correlated with ion-transport processes: hopping and blocking in glass matrix and phase boundaries. The ferroelectric properties of the Bi 2 VO 5.5 nanocrystallites are also possible origin of nonlinear effects. However, their contribution into nonlinearities is weaker than from the other observed processes. It is shown that a decrease of the Bi 2 VO 5.5 crystallites size from micro- to nanometers and introduction of additional structural disorder into material significantly decrease the real part of the third order electric susceptibility coefficient but does not influence the ratio of the third harmonic to the base conductivity. It is suggested that the ferroelectric nanoregions are single-domain and the nonlinearities derived from domain walls probably are not observed.
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
SOLID STATE IONICS
no. 317,
pages 7 - 14,
ISSN: 0167-2738 - Language:
- English
- Publication year:
- 2018
- Bibliographic description:
- Wójcik N., Kupracz P., Barczyński R.: Nonlinear electrical properties of glass-ceramics nanocomposites containing ferroelectric nanocrystallites of Bi2VO5.5// SOLID STATE IONICS. -Vol. 317, (2018), s.7-14
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.ssi.2017.12.035
- Verified by:
- Gdańsk University of Technology
Referenced datasets
- dataset Nonlinear impedance as a function of A.C. voltage for glass 40Bi2VO5.5-60SrB4O7 annealed at 473 K for 3h and next fully crystallized measured with impedance spectroscopy method at high temperature region
- dataset Nonlinear impedance as a function of A.C. voltage for fully crystallized 35Bi2VO5.5-65SrB4O7 glass measured with impedance spectroscopy method at high temperature region
- dataset Nonlinear impedance of 45Bi2VO5.5-55SrB4O7 fully crystallized glass measured with impedance spectroscopy method at high temperature region
- dataset Nonlinear impedance as a function of A.C. voltage for annealed and next fully crystallized 50Bi2VO5.5-50SrB4O7 glass measured with impedance spectroscopy method at high temperature region
- dataset Nonlinear impedance of 50(2Bi2O3-V2O5)-50SrB4O7 glass heat treated at 693 K measured with impedance spectroscopy method at high temperature region
- dataset Nonlinear impedance of 50Bi2VO5.5-50SrB4O7 glass measured with impedance spectroscopy method at low temperature region
- dataset Nonlinear impedance of as-quenched glass 40Bi2VO5.5-60SrB4O7 after full crystallization was measured with impedance spectroscopy method at high temperature region
- dataset Nonlinear impedance of 40Bi2VO5.5-60SrB4O7 annealed glass at 473 K for 3 h measured with impedance spectroscopy method at high temperature region
- dataset Nonlinear impedance of 50(2Bi2O3-V2O5)-50SrB4O7 glass-ceramic heat-treated at 813 K measured with impedance spectroscopy method at high temperature region
- dataset Nonlinear impedance of 50(2Bi2O3-V2O5)-50SrB4O7 glass heat treated two times measured with impedance spectroscopy method at high temperature region
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