RC circuit and conductivity properties of Mn0.6Co0.4Fe2O4 nanocomposite synthesized by hydrothermal method

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

doi:10.1016/j.jallcom.2013.04.206

Cited by 36 publications

(4 citation statements)

References 57 publications

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“…From above result and discussion, two different transport mechanism leading to mixed electrical conductivity are envisaged: (i) short range transport mechanism, originates from hopping process of charge carriers (holes and/or electrons) between different ions in localized states around Fermi level at low temperature, resulting lower activation energy; and (ii) long range transport mechanism, originates from thermally activated charge carriers into extended state at higher temperature, resulting higher activation energy [36].…”

Section: Development Of Ni-doped Yttria Stabilized Zirconia Compositementioning

confidence: 99%

Development of Ni-doped Yttria stabilized Zirconia composite for SOFC applications as Anodic material

Mohanta¹,

Das²,

Roul³

2017

IOSR JAP

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Section: Development Of Ni-doped Yttria Stabilized Zirconia Compositementioning

confidence: 99%

Development of Ni-doped Yttria stabilized Zirconia composite for SOFC applications as Anodic material

Mohanta¹,

Das²,

Roul³

2017

IOSR JAP

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“…Depending on the frequencies domain, two regions are clearly distinguishable. Firstly, the appearance of a plateau at a low frequency region (<0.1MHz), which increases with temperature, reflecting the direct current conductivity σdc due to the motions of charge carriers [31]. The second regime is observed at a higher frequency (>0.1MHz) corresponding to ac conductivity.…”

Section: Impedance Studiesmentioning

confidence: 97%

Vibrational Analysis and Electrical Conduction Mechanism Investigations ofOrder Disorder Phase Transitions in [N(C3H7)4]2ZnBr4Compound

Chkoundali¹,

Aydi

Hlel

2020

RDMS

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Bis-Tetrapropylammoniumtetrabromozincate has been synthesized and characterized by X-ray, vibrational spectroscopy and impedance spectroscopy. The Rietveldrefinement of the XRD diffractogram confirms the crystallization of the compound through the monoclinic system (space group C 2/c ).A temperature study of the Raman scattering revealed two phase transitions at about T 1 =340 and T 2 =393K. The evolution of the wavenumber and the line width versus the temperature showed some singularities associated with the transitions, suggesting that they are governed by the re-orientation of the [N(C 3 H 7 ) 4 ]+organic part. The complex impedance plotted as semicircle arcs in the temperature range and the centers of the semicircles lie below the real axis, which indicates that the material is non-Debye type. Double semicircles were related to bulk and grain boundary effects. Furthermore, the alternating current conductivity of the [N(C 3 H 7 ) 4 ] 2 ZnBr 4 obeyed the Jonscher's law: σ AC (ω)=σ dc +Aω s and the conduction could be attributed to thecorrelated barrier hopping (CBH) model in region (I) and (II)and the Non-overlapping SmallPolaron Tunneling (NSPT) in region (III).

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“…Lower or higher stoichiometric rate of Cd on Fe resulted in smaller nanoparticle formation. [25,26]. The v 1 , attributed to the intrinsic stretching vibrations of the metal in the tetrahedral sites, has a higher wave number [22].…”

Section: The Assessment Of Sem Micrographsmentioning

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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RC circuit and conductivity properties of Mn0.6Co0.4Fe2O4 nanocomposite synthesized by hydrothermal method

Cited by 36 publications

References 57 publications

Development of Ni-doped Yttria stabilized Zirconia composite for SOFC applications as Anodic material

Development of Ni-doped Yttria stabilized Zirconia composite for SOFC applications as Anodic material

Vibrational Analysis and Electrical Conduction Mechanism Investigations ofOrder Disorder Phase Transitions in [N(C3H7)4]2ZnBr4Compound

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

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RC circuit and conductivity properties of Mn0.6Co0.4Fe2O4 nanocomposite synthesized by hydrothermal method

Cited by 36 publications

References 57 publications

Development of Ni-doped Yttria stabilized Zirconia composite for SOFC applications as Anodic material

Development of Ni-doped Yttria stabilized Zirconia composite for SOFC applications as Anodic material

Vibrational Analysis and Electrical Conduction Mechanism Investigations ofOrder Disorder Phase Transitions in [N(C3H7)4]2ZnBr4Compound

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

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