Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 37: Issue 4
Dielectric behaviour in Ni0.65Zn0.35CuxFe2.xO4 ferrites
Authors:
S. A. Olofa Physics Department, Faculty of Science Tanta University Tanta Egypt

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,
A. Tawfik Physics Department, Faculty of Science Tanta University Tanta Egypt

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M. M. Barakat Physics Department, Faculty of Science Tanta University Tanta Egypt

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M. A. Henaish Physics Department, Faculty of Science Tanta University Tanta Egypt

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Pages:
749–755
Online Publication Date:
25 Jul 2005
Publication Date:
01 Apr 1991
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01913154
Restricted access

A series of samples of the type Ni0.65Zn0.35CuxFe2−xO4 (x=0, 0.1, 0.2, 0.3, 0.4 and 0.5) were prepared by means of a ceramic technique. The existence of a single phase was confirmed in X-ray studies. The dielectric constantK and dielectric lossD were measured at different temperatures at a frequency of 1 kHz. The pronounced increase in the dielectric constant at the transition temperature is due to the phase transformation from the ferrimagnetic to the paramagnetic state. The decrease in the dielectric loss with temperature is due to the reduction in the relaxation time of the hopping electrons and holes. The Tawfik constant was calculated in the ferrimagnetic state and was found to be correlated to the dielectric constant.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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