Effect of Frequency of the Alternating Electric Field on Temperature Impedance Spectra of LuFe2O4 Ceramic Multiferroic

Temperature impedance spectra are measured on LuFe 2 O 4 ceramic multiferroics over a temperature range of 100–400 K, upon applying a sinusoidal voltage with a frequency varying between 20 Hz and 120MHz. At signal frequencies of 30–70 MHz, spectra exhibit features such as an abnormal positive temper...

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Bibliographic Details
Published in:Physics of the solid state 2018-06, Vol.60 (6), p.1073-1077
Main Authors: Aliev, R. A., Gamzatov, A. G., Gadzhiev, G. M., Abakarova, N. S., Kaul’, A. R., Markelova, M., Emiraslanova, L. L.
Format: Article
Language:English
Subjects:
Impedance
Multiferroic materials
Physics
Physics and Astronomy
Semiconductors
Solid State Physics
Spectra
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Summary:Temperature impedance spectra are measured on LuFe 2 O 4 ceramic multiferroics over a temperature range of 100–400 K, upon applying a sinusoidal voltage with a frequency varying between 20 Hz and 120MHz. At signal frequencies of 30–70 MHz, spectra exhibit features such as an abnormal positive temperature resistance coefficient within the temperature range of 200–260 K, which are interpreted in the context of the generalized barrier model.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783418060033