Structural, dielectric and magnetic studies of (0–3) type multiferroic (1 − x) BaTi0.8Sn0.2O3–(x) La0.5Ca0.5MnO3 (0 ≤ x ≤ 1) composite ceramics
| Autor: | Yaovi Gagou, Daoud Mezzane, Y. El Amraoui, Brigita Rožič, E. Choukri, S. Ben Moumen, Zdravko Kutnjak, Y. Hadouch, Hamadi Khemakhem, M'barek Amjoud, Valentin V. Laguta, M. El Marssi, Najmeddine Abdelmoula |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Permittivity Condensed Matter - Materials Science Materials science Composite number Dielectric Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Grain size Electronic Optical and Magnetic Materials Remanence visual_art 0103 physical sciences visual_art.visual_art_medium Multiferroics Ceramic Electrical and Electronic Engineering Composite material Saturation (magnetic) |
| Zdroj: | Journal of Materials Science: Materials in Electronics |
| ISSN: | 0957-4522 |
| DOI: | 10.1007/s10854-020-04468-3 |
| Popis: | Multiferroic composites with the composition (1 − x) BaTi0.8Sn0.2O3–(x) La0.5Ca0.5MnO3 (x = 0, 0.3, 0.5, 0.7, 0.9 and 1) were prepared by sol–gel techniques. Rietveld refinements of the composites with 0–3 and 3–0 type connectivities exhibit the formation of pure phases and confirm the fraction of the composite samples. It was found that the composites grain size decreases slightly with increasing the La0.5Ca0.5MnO3 content. Magnetic measurements of the composite ceramics exhibit a gradual increase in saturation and remanent magnetization with increasing La0.5Ca0.5MnO3 content. Dielectric data demonstrate that the composite materials show high values of the dielectric constant in comparison with the parent compound BaTi0.8Sn0.2O3 (BTSO). In addition, an attempt is made to measure the magnetoelectric coupling coefficient and to explain the negative permittivity and losses occurring in these materials at a certain frequency and temperature conditions. |
| Databáze: | OpenAIRE |
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