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


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Abstract

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.

About the authors

R. A. Aliev

Amirkhanov Institute of Physics, Dagestan Scientific Center

Email: Hadzhygm@mail.ru
Russian Federation, Makhachkala, Republic of Dagestan, 367025

A. G. Gamzatov

Amirkhanov Institute of Physics, Dagestan Scientific Center

Email: Hadzhygm@mail.ru
Russian Federation, Makhachkala, Republic of Dagestan, 367025

G. M. Gadzhiev

Amirkhanov Institute of Physics, Dagestan Scientific Center

Author for correspondence.
Email: Hadzhygm@mail.ru
Russian Federation, Makhachkala, Republic of Dagestan, 367025

N. S. Abakarova

Amirkhanov Institute of Physics, Dagestan Scientific Center

Email: Hadzhygm@mail.ru
Russian Federation, Makhachkala, Republic of Dagestan, 367025

A. R. Kaul’

Moscow State University

Email: Hadzhygm@mail.ru
Russian Federation, Moscow, 119991

M. Markelova

Moscow State University

Email: Hadzhygm@mail.ru
Russian Federation, Moscow, 119991

L. L. Emiraslanova

Dagestan State University

Email: Hadzhygm@mail.ru
Russian Federation, Makhachkala, Dagestan Republic, 367008

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