Synthesis and Magnetoelectric Characterization of Cobalt Ferrite—barium Titanate Composites Using a New Pulsed Magnetic Field Method

Botello-Zubiate, M. E.; Bueno-Baqués, D.; Frutos, J. de; Cobas, Luis Edmundo Fuentes; Matutes-Aquino, J.A.

doi:10.1080/10584580600949055

Cited by 13 publications

(5 citation statements)

References 4 publications

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“…Working under this expanded definition the history of magnetoelectric multiferroics can be traced back to the 1960s [1][2][3]. In the most general sense the field of multiferroics was born from studies of magnetoelectric systems [4][5][6]. After an initial burst of interest, research remained static until early 2000.…”

Section: Introductionmentioning

confidence: 98%

“…Ferroelectric component in multiferroic composites, such as barium titanate -BaTiO 3 (BT) can be produced using a huge number of various well-known methods. However, to obtain barium titanate through an advanced synthesis method like auto-combustion synthesis is under some difficulties due to lack of the literature data for the preparation of the BT by this method [5].…”

Section: Introductionmentioning

confidence: 99%

“…Among them, the Ni-Zn ferrites/BaTiO 3 systems need to be further investigated because of high electrical resistivity, chemical stability and excellent electromagnetic properties of the Ni-Zn ferrites, and high permittivity, low dielectric loss and high tunability of BaTiO 3 [4][5][6]. Those composites have attracted much attention as a new class of nanoferrites, expanding their use in other areas, such as drug delivery, heterogeneous catalysis, levitated railway system, magnetic-refrigeration, microwave devices, antennas, etc [14].…”

Section: Introductionmentioning

confidence: 99%

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Multiferroic (NiZn) Fe2O4–BaTiO3 composites prepared from nanopowders by auto-combustion method

Dzunuzovic

Petrović

Stojadinović

et al. 2015

Ceramics International

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composites prepared from nanopowders by auto-combustion method, Ceramics International, http://dx. AbstractNickel zinc ferrite (NZF) and barium titanate (BT) were prepared by auto-combustion synthesis as an effective, simple and rapid method. Multiferroic composites with the general formula yNi 1-x Zn x Fe 2 O 4 -(1-y)BT (x= 0.3, 0.5, 0.7, y= 0.5) were prepared by mixing NZF and BT powders in a liquid medium in the ball mill. The FEG micrographs indicated the primary particle size less than 100 nm for both, barium titanate and nickel zinc ferrite phases. X-ray analysis and Raman spectroscopy indicated the formation of well crystallized structure of NZF and BT phase in the composite powders and ceramics, with a small contribution of the secondary phase. The homogenous phase distribution in obtained composites was also confirmed. Impedance spectroscopy measurements were carried out in order to investigate the electrical resistivity of materials, showing that grain boundaries have greater impact on the total resistivity than grains. Saturation magnetization and remnant magnetization continuously decrease with barium titanate phase increase.2

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Multiferroic (NiZn) Fe2O4–BaTiO3 composites prepared from nanopowders by auto-combustion method

Dzunuzovic

Petrović

Stojadinović

et al. 2015

Ceramics International

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“…The present paper reports the magnetodielectric properties of: i) single phase materials: 3 , prepared by the auto-combustion method. From the literature data it was observed that the NZF is characterized with high electrical resistivity, chemical stability and good electromagnetic properties while the BT possesses a high permittivity, low dielectric loss and high tunability [15][16][17]. CF, as a semi-hard material, has a good electrostrictive properties, large magnetocrystalline anisotropy, high coercivity, chemical stability and mechanical hardness, while PZT, with morphotropic phase boundary structure has excellent ferroelectric and piezoelectric properties [18,19].…”

Section: Introductionmentioning

confidence: 99%

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

Dzunuzovic

Vijatovic-Petrovic

Ilić

et al. 2019

PAC

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Ni-Zn ferrites, with the general formula Ni 1-x Zn x Fe 2 O 4 (x = 0.0, 0.3, 0.5, 0.7, 1.0), CoFe 2 O 4 , BaTiO 3 and PbZr 0.52 Ti 0.48 O 3 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 NiZnFe 2 O 4 , BaTiO 3 and PbZr 0.52 Ti 0.48 O 3 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 δ 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.

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“…5 There is a need of developing larger multiferroic ferroelectric materials and their many composites like BaTiO 3 (BT) with several methods such as sol-gel, co-precipitation, combustion, spray pyrolysis and etc., Among the many ways of synthesizing combustion and auto-combustion is one of the finest ways to produce multiferroic composite materials with many desirable factors such as control in size, etc. 6 Even though, co-precipitation process was a method of preparing nano-range with suitable and defined sizes. And so in this work the authors adopted sol-gel method to synthesis BT.…”

mentioning

confidence: 99%

Magnetic and Dielectric Study of Ceramic Nanocomposite Nickel Ferrite and Barium Titanate Compounds

Mahalakshmi

Swetha

Nithiyanatham

et al. 2021

ECS J. Solid State Sci. Technol.

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Owing to high dielectric constants and coupled magnetic properties at room temperature, multiferroics related materials have wide application in many fields like multi-layer ferroic capacitors and multifunctional devices. Nickel ferrite, barium titanate composite is prepared from co-precipitation method and sintered at high temperature (1273 K). Intrinsic stretching vibrations observed in FTIR spectra at 594 cm −1 . X-ray measurements detected the presence of their single phases (tetragonal perovskite crystal). Variations of AC dielectric constant in these samples have been studied. The influence of the phase content on the dielectric constant and loss tangent conductivity was also studied. The AC measurement yields smaller variations at a low range of frequency and more variations in higher frequency ranges indicate amplification of confined states with the availability of large charge carriers. A magnetic measurement reveals that the soft ferromagnetic properties of 68.356 emu g −1 and 20.465 emu g −1 at room temperature.

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Synthesis and Magnetoelectric Characterization of Cobalt Ferrite—barium Titanate Composites Using a New Pulsed Magnetic Field Method

Cited by 13 publications

References 4 publications

Multiferroic (NiZn) Fe2O4–BaTiO3 composites prepared from nanopowders by auto-combustion method

Multiferroic (NiZn) Fe2O4–BaTiO3 composites prepared from nanopowders by auto-combustion method

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

Magnetic and Dielectric Study of Ceramic Nanocomposite Nickel Ferrite and Barium Titanate Compounds

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