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Study of structural, dielectric, and electrical properties of the LaBaFe1.2Mn0.8O6 double perovskite

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Abstract

The polycrystalline sample of LaBaFe1.2Mn0.8O6 was synthesized by sol–gel method. Preliminary analysis of room-temperature X-ray data pattern of the sample confirms the formation of a single-phase compound in rhombohedral crystal system with the space group R\(\overline{3 }\)C. Detailed studies of dielectric and impedance spectroscopy complex with frequency at various temperatures confirmed the existence of relaxation phenomenon in the material. Studies of electrical properties show a strong correlation with the microstructure and resistive properties of the material. The electrical transport shows the existence of a non-exponential conductivity relaxation in the material. For different temperatures, the variation of the real part of the permittivity as a function of frequency suggests that the material is a relaxor. Furthermore, the temperature evolution of direct current conductivity indicates that the compound has a semiconductor property. CBH is the most appropriate conduction model. This sample has significant electrical and dielectric qualities; it has a high permittivity and low dielectric loss, making it suitable for technical applications such as capacitors in the electrical area.

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Authors and Affiliations

  1. Laboratoire de Physique Des Matériaux, Faculté Des Sciences de Sfax, Université de Sfax, B.P. 1171, 3000, Sfax, Tunisia

    K. Iben Nassar & N. Rammeh

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  1. K. Iben Nassar
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  2. N. Rammeh
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Correspondence to K. Iben Nassar.

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Iben Nassar, K., Rammeh, N. Study of structural, dielectric, and electrical properties of the LaBaFe1.2Mn0.8O6 double perovskite. Indian J Phys 97, 1749–1757 (2023). https://doi.org/10.1007/s12648-022-02524-8

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