Magneto-dielectric properties of ferrites and ferrite/ferroelectric multiferroic composites

2019
Authors
Džunuzović, Adis
Vijatović-Petrović, Mirjana

Ilić, Nikola

Bobić, Jelena

Stojanović, Biljana D

Article (Published version)
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Ni-Zn ferrites, with the general formula Ni1-xZnx Fe2O4 (x = 0.0, 0.3, 0.5, 0.7, 1.0), CoFe2O4, BaTiO3 and PbZr0.52Ti0.48O3 powders were synthesized by auto-combustion method. The composites were prepared by mixing the appropriate amounts of individual phases, pressing and conventional sintering. X-ray analysis, for individual phase and composites, indicated the formation of crystallized structure of Ni1-xZnx Fe2O4, BaTiO3 and PbZr0.52Ti0.48O3 without the presence of secondary phases or any impurities. SEM analyses indicated a formation of uniform grain distribution for ferromagnetic and ferroelectric phases and formation of two types of grains, polygonal and rounded, respectively. Magneto-dielectric effect was exhibited in all samples because of the applied stress occurring due to the piezomagnetic effect and the magnetic field induced the variation of the dielectric constant. For all samples the dielectric constant was higher in applied magnetic field. At the low frequency, the dispe...rsion of dielectric losses appeared, while at the higher frequency the value of tan ffi become constant (Maxwell-Wagner relaxation). Investigation of J-E relation between leakage and electric field revealed that both nickel zinc ferrite and composites have three different regions of conduction: region with ohmic conduction mechanism, region with the trap-controlled space charge limited current mechanism and region with space charge limited current mechanism.
Keywords:
multiferroic composites / dielectric properties / combustion synthesisSource:
Processing and Application of Ceramics, 2019, 13, 1, 104-113Publisher:
- Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad
Funding / projects:
DOI: 10.2298/PAC1901104D
ISSN: 1820-6131
WoS: 000462902100012
Scopus: 2-s2.0-85070688824
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Institut za multidisciplinarna istraživanjaTY - JOUR AU - Džunuzović, Adis AU - Vijatović-Petrović, Mirjana AU - Ilić, Nikola AU - Bobić, Jelena AU - Stojanović, Biljana D PY - 2019 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1262 AB - Ni-Zn ferrites, with the general formula Ni1-xZnx Fe2O4 (x = 0.0, 0.3, 0.5, 0.7, 1.0), CoFe2O4, BaTiO3 and PbZr0.52Ti0.48O3 powders were synthesized by auto-combustion method. The composites were prepared by mixing the appropriate amounts of individual phases, pressing and conventional sintering. X-ray analysis, for individual phase and composites, indicated the formation of crystallized structure of Ni1-xZnx Fe2O4, BaTiO3 and PbZr0.52Ti0.48O3 without the presence of secondary phases or any impurities. SEM analyses indicated a formation of uniform grain distribution for ferromagnetic and ferroelectric phases and formation of two types of grains, polygonal and rounded, respectively. Magneto-dielectric effect was exhibited in all samples because of the applied stress occurring due to the piezomagnetic effect and the magnetic field induced the variation of the dielectric constant. For all samples the dielectric constant was higher in applied magnetic field. At the low frequency, the dispersion of dielectric losses appeared, while at the higher frequency the value of tan ffi become constant (Maxwell-Wagner relaxation). Investigation of J-E relation between leakage and electric field revealed that both nickel zinc ferrite and composites have three different regions of conduction: region with ohmic conduction mechanism, region with the trap-controlled space charge limited current mechanism and region with space charge limited current mechanism. PB - Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad T2 - Processing and Application of Ceramics T1 - Magneto-dielectric properties of ferrites and ferrite/ferroelectric multiferroic composites EP - 113 IS - 1 SP - 104 VL - 13 DO - 10.2298/PAC1901104D ER -
@article{ author = "Džunuzović, Adis and Vijatović-Petrović, Mirjana and Ilić, Nikola and Bobić, Jelena and Stojanović, Biljana D", year = "2019", abstract = "Ni-Zn ferrites, with the general formula Ni1-xZnx Fe2O4 (x = 0.0, 0.3, 0.5, 0.7, 1.0), CoFe2O4, BaTiO3 and PbZr0.52Ti0.48O3 powders were synthesized by auto-combustion method. The composites were prepared by mixing the appropriate amounts of individual phases, pressing and conventional sintering. X-ray analysis, for individual phase and composites, indicated the formation of crystallized structure of Ni1-xZnx Fe2O4, BaTiO3 and PbZr0.52Ti0.48O3 without the presence of secondary phases or any impurities. SEM analyses indicated a formation of uniform grain distribution for ferromagnetic and ferroelectric phases and formation of two types of grains, polygonal and rounded, respectively. Magneto-dielectric effect was exhibited in all samples because of the applied stress occurring due to the piezomagnetic effect and the magnetic field induced the variation of the dielectric constant. For all samples the dielectric constant was higher in applied magnetic field. At the low frequency, the dispersion of dielectric losses appeared, while at the higher frequency the value of tan ffi become constant (Maxwell-Wagner relaxation). Investigation of J-E relation between leakage and electric field revealed that both nickel zinc ferrite and composites have three different regions of conduction: region with ohmic conduction mechanism, region with the trap-controlled space charge limited current mechanism and region with space charge limited current mechanism.", publisher = "Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad", journal = "Processing and Application of Ceramics", title = "Magneto-dielectric properties of ferrites and ferrite/ferroelectric multiferroic composites", pages = "113-104", number = "1", volume = "13", doi = "10.2298/PAC1901104D" }
Džunuzović, A., Vijatović-Petrović, M., Ilić, N., Bobić, J.,& Stojanović, B. D.. (2019). Magneto-dielectric properties of ferrites and ferrite/ferroelectric multiferroic composites. in Processing and Application of Ceramics Univerzitet u Novom Sadu - Tehnološki fakultet, Novi Sad., 13(1), 104-113. https://doi.org/10.2298/PAC1901104D
Džunuzović A, Vijatović-Petrović M, Ilić N, Bobić J, Stojanović BD. Magneto-dielectric properties of ferrites and ferrite/ferroelectric multiferroic composites. in Processing and Application of Ceramics. 2019;13(1):104-113. doi:10.2298/PAC1901104D .
Džunuzović, Adis, Vijatović-Petrović, Mirjana, Ilić, Nikola, Bobić, Jelena, Stojanović, Biljana D, "Magneto-dielectric properties of ferrites and ferrite/ferroelectric multiferroic composites" in Processing and Application of Ceramics, 13, no. 1 (2019):104-113, https://doi.org/10.2298/PAC1901104D . .