Journal ArticleDOI
Temperature and frequency-dependent dielectric properties of Zn substituted Li-Mg ferrites
TLDR
In this paper, the compositional variation of DC resistivity and dielectric constant show the inverse trend with each other, while the dielectral constant increases slowly with temperature in the beginning and then abruptly at about 473 K and above.About:
This article is published in Journal of Magnetism and Magnetic Materials.The article was published on 1999-05-01. It has received 162 citations till now. The article focuses on the topics: Dielectric loss & Dielectric.read more
Citations
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Structural, magnetic and electrical properties of the sol-gel prepared Li0.5Fe2.5O4 fine particles
TL;DR: In this paper, the magnetic properties of Li0.5Fe2.5O4 nanoparticles with grain sizes ranging from 12 to 32 nm were studied. And the as-prepared sample of lithium ferrite showed a maximum saturation magnetization of 75 emu g−1.
Journal ArticleDOI
Evidence for polaron conduction in nanostructured manganese ferrite
E. Veena Gopalan,K. A. Malini,Sekaran Saravanan,D. Sakthi Kumar,Yasuhiko Yoshida,M. R. Anantharaman +5 more
TL;DR: In this article, the authors measured real and imaginary dielectric parameters of manganese ferrite in the frequency range of 100 kHz-8 MHz at different temperatures. And they found that the dispersion and roadening properties of the vanishes of the dielectrics suggest the possibility of a distribution of relaxation time and the existence of multiple equilibrium states in manganized ferrite.
Journal ArticleDOI
Structural, morphological, electrical and magnetic properties of Dy doped Ni–Co substitutional spinel ferrite
TL;DR: In this paper, the influence of Dy doping on structural, morphological, electrical and magnetic properties were studied and the formation of spinel ferrite phase was confirmed by X-ray diffraction.
Journal ArticleDOI
Effect of lattice strain on structure, morphology and magneto-dielectric properties of spinel NiGdxFe2−xO4 ferrite nano-crystallites synthesized by sol-gel route
M. Maria Lumina Sonia,S. Anand,V. Maria Vinosel,M. Asisi Janifer,S. Pauline,Ayyar Manikandan +5 more
TL;DR: In this paper, the structural, morphological, magnetic and dielectric properties of synthesized nanoparticles were examined by XRD, FTIR, HRSEM, EDX, TEM, VSM, and Dielectric studies.
Journal ArticleDOI
Study of dielectric and impedance properties of Mn ferrites
TL;DR: In this article, the effect of Al substitution on the structural and electrical properties of bulk ferrite series of basic composition MnFe2 � 2xAl2xO4 (0.0r xr 0.5) synthesized using solid state reaction method.
References
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Journal ArticleDOI
Dielectric properties of copper containing ferrites
N. Rezlescu,E. Rezlescu +1 more
TL;DR: In this paper, the authors investigated the dielectric parameters of copper containing ferrites and found an abnormal behaviour of the constant and loss factor as a function of frequency and temperature in comparison with the normal behaviour of spinel ferrites.
Journal ArticleDOI
Dielectric Properties of Fine Particles of Fe3O4 and Some Ferrites
TL;DR: In this paper, the dispersions of resistivity and dielectric constant of fine oxides over a frequency range from 10 Hz to 1 MHz in the temperature range from 77°K to 300°K were studied.
Patent
Oxide magnetic material
TL;DR: In this paper, an oxide magnetic material with a hexagonal structure is described, and the metal elements contained in the oxide magnetic materials are expressed as the following formula: Ca1-x-x'LaxSrxSrx'Fe2n-yCoy, and x, x' and y representing atomic ratios and n representing a molar ratio satisfy the following relations: 0.4 ≤ x ≤ 0.6, 0.01 ≤ x ≥ 0.45, 5.2 ≤ n ≤ 5.8.
Journal ArticleDOI
DC conductivity and dielectric behaviour of cobalt-zinc ferrites
O. S. Josyulu,J. Sobhanadri +1 more
TL;DR: In this article, a dispersion region is observed in cobalt-zinc ferrites and barium ferrites, and the conductivity of these ferrites is explained by the hopping mechanism.