Search
Abstract
Results of studies focusing on the electric behavior of Bi6Fe2Ti3O18 (BFTO) ceramics are reported. BFTO ceramics were fabricated by solid state reaction methods. The simple oxides Bi2O3, TiO2, and Fe2O3 were used as starting materials. Immittance spectroscopy was chosen as a method to characterize electric and dielectric properties of polycrystalline ceramics. The experimental data were measured in the frequency range D = (101–107) Hz and the temperature range DT = (120–200) C. Analysis of immittance data was performed in terms of complex impedance, electric modulus function, and conductivity. The activation energy corresponding to a non-Debye type of relaxation was found to be EA = 0.573 eV, whereas the activation energy of conductivity relaxation frequency was found to be EA = 0.570 eV. An assumption of a hopping conductivity mechanism for BFTO ceramics was studied by ‘universal’ Jonscher’s law. A value of the exponents was found to be within the “Jonscher’s range” (0.54 n 0.72). The dc-conductivity was extracted from the measurements. Activation energy for dc-conductivity was calculated to be EDC = 0.78 eV, whereas the dc hopping activation energy was found to be EH = 0.63 eV. The obtained results were discussed in terms of the jump relaxation model.
Citations
-
6
CrossRef
-
0
Web of Science
-
5
Scopus
Authors (4)
-
Barbara Garbarz-Glos dr hab.
-
Wojciech Bąk dr hab.
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma13225286
- License
-
open in new tab
Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Materials
no. 13,
ISSN: 1996-1944 - Language:
- English
- Publication year:
- 2020
- Bibliographic description:
- Lisińska-Czekaj A., Czekaj D., Garbarz-Glos B., Bąk W.: Immittance Studies of Bi6Fe2Ti3O18 Ceramics// Materials -Vol. 13,iss. 22 (2020), s.5286-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma13225286
- Verified by:
- Gdańsk University of Technology
seen 106 times
Recommended for you
Low temperature broad band dielectric spectroscopy of multiferroic Bi6Fe2Ti3O18 ceramics
- A. Lisińska-Czekaj,
- M. Rerak,
- D. Czekaj
- + 3 authors
Electrical conductivity and relaxation processes in V2O5 nanorods prepared by sol–gel method
- M. Prześniak-Welenc,
- N. A. Wójcik,
- A. Winiarski
- + 5 authors