Hopping conduction mechanism and impedance spectroscopy analyses of La0.70Sr0.25Na0.05Mn0.70Ti0.30O3 ceramic


Raddaoui Z. El Kossi S. Brahem R. Bajahzar A. Valentinovich Trukhanov A. Leonidovich Kozlovskiy A. Vladimirovich Zdorovets M. Dhahri J. Belmabrouk H.
June 2021Springer

Journal of Materials Science: Materials in Electronics
2021#32Issue 1216113 - 16125 pp.

The perovskite sample La0.7Sr0.25Na0.05Mn0.7Ti0.3O3 (LSNM0.70T0.30) was produced via a solid-state route process. The frequency dependence of electrical conduction plot established that according to the Jonscher law. The electrical conduction process was based on both theoretical conduction models assigned to the non-overlapping small polaron tunneling model at low temperatures and correlated barrier hopping mechanism at high temperatures. Detailed investigation of impedance data revealed a non-Debye-type relaxation occurring in the polycrystalline. In addition, the dielectric response confirmed the dominance of the Maxwell–Wagner model and Koop’s phenomenological theory effect in conduction phenomenon. The values of permittivity is high for LSNM0.70T0.30 were observed. These values make this composition interesting for microelectric applications. In the thermal study, the relaxation processes observed by electrical conductivity, impedance, and modulus are associated with singly and doubly ionized oxygen vacancies for the lower and higher temperature, respectively.



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Laboratoire de la Matière Condensée et des Nanosciences, Faculté des Sciences de Monastir, Université de Monastir, Avenue de l’environnement, Monastir, 5019, Tunisia
Department of Science and Arts At Dhariah, Qassim University, Buraydah, 51962, Saudi Arabia
Department of Computer Science and Information, College of Science at Al Zulfi, Majmaah University, Zulfi, 11932, Saudi Arabia
Scientific-Practical Materials Research Centre of NAS of Belarus, P. Brovki str., 19, Minsk, 220072, Belarus
South Ural State University, Lenin Av., 76, Chelyabinsk, 454080, Russian Federation
National University of Science and Technology MISiS, Leninsky av., 4, Moscow, 119049, Russian Federation
The Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
L.N. Gumilyov, Eurasian National University, Nur-Sultan, 010008, Kazakhstan
Ural Federal University named after the First President of Russia B.N. Yeltsin, Yekaterinburg, 620075, Russian Federation
Department of Physics, College of Science at Zulfi, Majmaah University, Zulfi, 11932, Saudi Arabia

Laboratoire de la Matière Condensée et des Nanosciences
Department of Science and Arts At Dhariah
Department of Computer Science and Information
Scientific-Practical Materials Research Centre of NAS of Belarus
South Ural State University
National University of Science and Technology MISiS
The Institute of Nuclear Physics
L.N. Gumilyov
Ural Federal University named after the First President of Russia B.N. Yeltsin
Department of Physics

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