Effect of Frequency of the Alternating Electric Field on Temperature Impedance Spectra of LuFe 2 O 4  Ceramic Multiferroic

R. A. Aliev; A. G. Gamzatov; G. M. Gadzhiev; N. S. Abakarova; A. R. Kaul’; M. Markelova; L. L. Emiraslanova

doi:10.1134/S1063783418060033

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

Autores: Aliev R.A.¹, Gamzatov A.G.¹, Gadzhiev G.M.¹, Abakarova N.S.¹, Kaul’ A.R.², Markelova M.², Emiraslanova L.L.³
Afiliações:
1. Amirkhanov Institute of Physics, Dagestan Scientific Center
2. Moscow State University
3. Dagestan State University
Edição: Volume 60, Nº 6 (2018)
Páginas: 1073-1077
Seção: Semiconductors
URL: https://journals.rcsi.science/1063-7834/article/view/203044
DOI: https://doi.org/10.1134/S1063783418060033
ID: 203044

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Temperature impedance spectra are measured on LuFe₂O₄ 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.