Overlapping large polaron tunneling conductivity and giant dielectric constant in Ni0.5Zn0.5Fe1.5Cr0.5O4 nanoparticles (NPs)

Tan, Muhammed; Köseoğlu, Yüksel; Alan, Furkan; Şentürk, E.

doi:10.1016/j.jallcom.2011.07.063

Cited by 93 publications

(29 citation statements)

References 42 publications

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“…Then, it decreases. Its magnitude and behavior are similar to that of Ni 0.5 Zn 0.5 Cr 0.5 Fe 1.5 O 4 nanoparticles dielectrically studied by Tan et al 69 This evolution was due to the decrease in polarization with frequency. 70 Four kinds of polarizations, namely, interfacial, dipolar, electronic, and ionic polarization have an obvious effect on the dielectric constant.…”

Section: Impedance Measurementsupporting

confidence: 84%

“…16(a)). A similar anomaly was found by Mohamed et al 73 for a nanocomposite PANI-Ni 0.5 Zn 0.5 Fe 1.5 Cr 0.5 O 4 around 333 K and by Tan et al 74 at 305 K. This peak may be attributed to local polarization 75 and its wide dispersion indicates the diffuse character of phase transition that the material undergoes. 76 With increasing frequency, the dielectric maxima shi to higher temperatures.…”

Section: Impedance Measurementsupporting

confidence: 81%

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Investigation of annealing effects on the physical properties of Ni_0.6Zn_0.4Fe_1.5Al_0.5O₄ ferrite

et al. 2019

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Section: Impedance Measurementsupporting

confidence: 84%

Section: Impedance Measurementsupporting

confidence: 81%

Investigation of annealing effects on the physical properties of Ni_0.6Zn_0.4Fe_1.5Al_0.5O₄ ferrite

et al. 2019

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“…1 In the last few years there has been increasing interest in mixed ferrites, because of their interesting physical, chemical, and structural properties, and remarkably promising applications. 2 The spinel ferrites are an important group of magnetic materials, because of their useful magnetic properties, especially in the radiofrequency region, physical flexibility, high electrical resistivity, mechanical hardness, and chemical stability. Because of their excellent properties, much attention has also been devoted to mixed spinel ferrites, which are mainly used in electrical devices and as catalysts.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Zinc-Containing Nickel Gallate Ferrite

Hashhash

Imam

Ismail

et al. 2015

Journal of Elec Materi

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Titanium-Catalyzed Intermolecular Hydroaminoalkylation of ConjugatedDienes. -For the first time the new and highly atom-efficient reaction for the synthesis of homoallylic amines from readily available 1,3-butadienes is presented. The scope of the reaction is still limited [e.g. reaction of (If), (Vb), and (VIIIb)]. Aliphatic dienes (XI) react much more regioselectively than the aromatic ones. -(PREUSS, T.; SAAK, W.; DOYE*, S.; Chem. -Eur.

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“…where D -average size of the crystallites, θ glancing angle (2θ/2) and β -full width at half maximum (FWHM) for the sharpest peak (311) [16].…”

Section: Resultsmentioning

confidence: 99%

The Effect of Al³⁺ Additive on the Structural, Optical, and Magnetic Properties of Al-Cd Ferrites Fabricated by Coprecipitation Method

2018

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In the present study, Al-Cd ferrites of nominal composition AlxCd1−xFe2O4 (x = 0-0.5) were prepared by coprecipitation method. The effect of Al +3 additive on the structural, optical, and magnetic properties of the as-prepared Al-Cd ferrites was investigated. Samples were characterized by X-ray diffraction, scanning electron microscopy, the Fourier transform infrared spectroscopy, UV spectroscopy and vibrating sample magnetometer techniques. The magnetic analysis indicated that all of the samples in different compositions showed ferromagnetic behavior. Along with the X-ray diffraction patterns, the formation of single-phase cubic spinel structure and the lattice parameter were identified in the range of 8.6492-8.6984 Å. Scanning electron microscopy measurements showed that the smallest ferrite nanoparticles were obtained when the stoichiometric composition factor (x) value was 0.4. As an additional characterization, the Fourier transform infrared spectra was investigated, and the characteristic absorption, bands belonging to ferrite nanoparticles were identical around 530 cm −1 and 430 cm −1. The tetrahedral and the octahedral complex formation was proved by the observation of higher frequency (ν1), and lower frequency (ν2) bands by Fourier transform infrared method, respectively. UV-Vis characterization performed for the determination of Eg values depending on changing Al concentration and found as 2.07-2.24 eV. From the magnetic measurements, all the Al-doped Cd ferrites exhibit S-shaped narrow hysteresis loops revealing soft ferromagnetic nature of the formed ferrites.

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Overlapping large polaron tunneling conductivity and giant dielectric constant in Ni0.5Zn0.5Fe1.5Cr0.5O4 nanoparticles (NPs)

Cited by 93 publications

References 42 publications

Investigation of annealing effects on the physical properties of Ni_0.6Zn_0.4Fe_1.5Al_0.5O₄ ferrite

Investigation of annealing effects on the physical properties of Ni_0.6Zn_0.4Fe_1.5Al_0.5O₄ ferrite

Preparation and Characterization of Zinc-Containing Nickel Gallate Ferrite

The Effect of Al³⁺ Additive on the Structural, Optical, and Magnetic Properties of Al-Cd Ferrites Fabricated by Coprecipitation Method

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Overlapping large polaron tunneling conductivity and giant dielectric constant in Ni0.5Zn0.5Fe1.5Cr0.5O4 nanoparticles (NPs)

Cited by 93 publications

References 42 publications

Investigation of annealing effects on the physical properties of Ni0.6Zn0.4Fe1.5Al0.5O4 ferrite

Investigation of annealing effects on the physical properties of Ni0.6Zn0.4Fe1.5Al0.5O4 ferrite

Preparation and Characterization of Zinc-Containing Nickel Gallate Ferrite

The Effect of Al3+ Additive on the Structural, Optical, and Magnetic Properties of Al-Cd Ferrites Fabricated by Coprecipitation Method

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Investigation of annealing effects on the physical properties of Ni_0.6Zn_0.4Fe_1.5Al_0.5O₄ ferrite

Investigation of annealing effects on the physical properties of Ni_0.6Zn_0.4Fe_1.5Al_0.5O₄ ferrite

The Effect of Al³⁺ Additive on the Structural, Optical, and Magnetic Properties of Al-Cd Ferrites Fabricated by Coprecipitation Method