The effect on dielectric losses in lithium ferrite by cerium substitution

The effect on dielectric losses in lithium ferrite by cerium substitution

An extensive study of magnetic and dielectric properties has been carried out on the series of cerium substituted lithium ferrite Li 0.5Ce x Fe 2.5− x O 4 ( x = 0.0–0.10 in step of 0.02) prepared by solid-state reaction technique. Phase analysis, microstructure and magnetic properties were studied b...

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Bibliographic Details
Published in:Journal of alloys and compounds Vol. 466; no. 1; pp. 404 - 407
Main Authors: Verma, Vivek, Kotnala, R.K., Pandey, Vibhav, Kothari, P.C., Radhapiyari, L., Matheru, B.S.
Format: Journal Article
Language:English
Published: Lausanne Elsevier B.V 20-10-2008
Elsevier
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric loss and relaxation
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Magnetization
Microstructure
Permittivity (dielectric function)
Physics
Solid state reaction
X-ray diffraction
X-ray diffraction
Magnetization
Microstructure
Solid state reaction
Scanning electron microscopy
Electrical conductivity
Dielectric properties
XRD
Phase analysis
Cerium Iron Lithium Oxides Mixed
Ferrites
Dielectric losses
Permittivity
Saturation magnetization
Magnetic properties
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Summary:An extensive study of magnetic and dielectric properties has been carried out on the series of cerium substituted lithium ferrite Li 0.5Ce x Fe 2.5− x O 4 ( x = 0.0–0.10 in step of 0.02) prepared by solid-state reaction technique. Phase analysis, microstructure and magnetic properties were studied by X-ray diffraction, scanning electron microscopy and vibrating sample magnetometer (VSM), respectively. Saturation magnetization value ( M s) decreases with substitution of cerium in lithium ferrite but the real part of dielectric constant value 3.4 × 10 4 obtained is maximum for the molar concentration Ce = 0.06 in Li 0.5Ce x Fe 2.5− x O 4. Resistivity of all samples is in the range 10 6–10 7 Ω cm measured by two-probe technique.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2007.11.056