Dielectric behaviour and magnetoelectric effect in CuFe2O4–Ba0.8Pb0.2TiO3 composites

Patankar, K. K.; Mathe, V. L.; Mahajan, R P; Patil, S. A.; Reddy, Ram Manohar; Kumar, K. V. Siva

doi:10.1016/s0254-0584(01)00307-8

Cited by 60 publications

(22 citation statements)

References 12 publications

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“…Such shifting feature of dielectric loss peak is different from the conventional thermal activated higher frequency shift, as observed in different materials. 40,41 Moreover, Table III shows that isothermal dielectric loss peak position appears at higher frequencies with the increase of milling time, while grain size decreased and better homogenization of Ga atoms in α-Fe 2 O 3 structure were taking place.…”

Section: Resultsmentioning

confidence: 96%

Magnetic, dielectric and photo-absorption study of a ferromagnetic semiconductor α-Fe1.4Ga0.6O3

Naresh

Bhowmik

2011

AIP Advances

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We report the synthesis of α-Fe1.4Ga0.6O3 compound and present its structural phase stability and interesting magnetic, dielectric and photo-absorption properties. In our work Ga doped α-Fe2O3 samples are well stabilized in α phase (rhombohedral crystal structure with space group R3C). Properties of the present composition of Ga doped α-Fe2O3 system are remarkably advanced in comparison with recently most studied FeGaO3 composition. At room temperature the samples are typical soft ferromagnet, as well as direct band gap semiconductor. Dielectric study showed low dielectric loss in the samples with large enhancement of ac conductivity at higher frequencies. Optical absorption in the visible range has been enhanced by 4 to 5%. This composition has exhibited large scope of tailoring room temperature ferromagnetic moment and optical band gap by varying grain size and non-ambient (vacuum) heat treatment of the as prepared samples by mechanical alloying.

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Section: Resultsmentioning

confidence: 96%

Magnetic, dielectric and photo-absorption study of a ferromagnetic semiconductor α-Fe1.4Ga0.6O3

Naresh

Bhowmik

2011

AIP Advances

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“…It was reported [22] that copper ferrite could act both as n-and p-type semiconductors. The electrical carriers can be generated by the following redox reactions [21]:…”

Section: Methodsmentioning

confidence: 99%

In situ electrical conductivity and catalytic properties of copper ferrite synthesized by non-conventional methods

Munteanu

Căldăraru

Gingaşu

et al. 2011

Reac Kinet Mech Cat

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The in situ electrical properties and the catalytic activity of copper ferrite obtained by co-precipitation and thermal decomposition of polynuclear coordination compounds were studied in the propane oxidation reaction. The sample prepared by complexation had a better catalytic activity. Based on the conductivity data and the relative phase distribution in fresh and used compounds, the results are discussed in terms of the redox-type mechanism.

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“…It is also observed that the electrical permittivity decreases with increase in frequency and a broad peak is observed. The broad nature of peaks indicates diffuse phase transition [27]. The dielectric loss also decreases with increase in frequencies and small hump is seen at higher frequencies indicating the phase transition.…”

Section: Dielectric Studiesmentioning

confidence: 96%

Studies on Structural, Dielectric, and Electrical Properties of a Ni_0.284Zn_0.549Cu_0.183Fe_1.984O₄Piezomagnetic Material

Balusamy

Kumaravel²,

Kanagathara³

et al. 2016

Acta Phys. Pol. A

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Piezomagnetic materials in composition Ni0.284Zn0.549Cu0.183Fe1.984O4 were prepared by mixed oxide method at 1100Powder X-ray diffraction studies confirm the crystalline nature of the synthesized Ni0.284Zn0.549Cu0.183Fe1.984O4 piezomagnetic material. The crystallite size is calculated to be 19.332 µm using the Debye-Scherrer formula. The surface morphology and particle size of the samples has been studied by scanning electron microscopy. The thermal stability and decomposition behaviour of Ni0.284Zn0.549Cu0.183Fe1.984O4 piezomagnetic material have been studied by thermogravimetric analysis at a heating rate of 15• C/min. The effective activation energy of the prepared composite was calculated using single heating rate methods: Broido's and Coats-Redfern methods. Dielectric properties of Ni0.284Zn0.549Cu0.183Fe1.984O4 piezomagnetic material have been studied in a wide range of frequencies and temperatures. The magnetic behavior of Ni0.284 Zn0.549 Cu0.183 Fe1.984O4 piezomagnetic material at room temperature has been confirmed by vibrational sample magnetometer studies.

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Dielectric behaviour and magnetoelectric effect in CuFe2O4–Ba0.8Pb0.2TiO3 composites

Cited by 60 publications

References 12 publications

Magnetic, dielectric and photo-absorption study of a ferromagnetic semiconductor α-Fe1.4Ga0.6O3

Magnetic, dielectric and photo-absorption study of a ferromagnetic semiconductor α-Fe1.4Ga0.6O3

In situ electrical conductivity and catalytic properties of copper ferrite synthesized by non-conventional methods

Studies on Structural, Dielectric, and Electrical Properties of a Ni_0.284Zn_0.549Cu_0.183Fe_1.984O₄Piezomagnetic Material

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Dielectric behaviour and magnetoelectric effect in CuFe2O4–Ba0.8Pb0.2TiO3 composites

Cited by 60 publications

References 12 publications

Magnetic, dielectric and photo-absorption study of a ferromagnetic semiconductor α-Fe1.4Ga0.6O3

Magnetic, dielectric and photo-absorption study of a ferromagnetic semiconductor α-Fe1.4Ga0.6O3

In situ electrical conductivity and catalytic properties of copper ferrite synthesized by non-conventional methods

Studies on Structural, Dielectric, and Electrical Properties of a Ni0.284Zn0.549Cu0.183Fe1.984O4Piezomagnetic Material

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Product

Resources

About

Studies on Structural, Dielectric, and Electrical Properties of a Ni_0.284Zn_0.549Cu_0.183Fe_1.984O₄Piezomagnetic Material