Reinspection of formation of BiFe1-xMnxO3 solid solutions via low temperature sol-gel synthesis route
| Autor: | Dalis Baltrunas, Aldona Beganskiene, Dovydas Karoblis, Ramunas Diliautas, Kestutis Mazeika, Aivaras Kareiva, Aleksej Zarkov, Rimantas Raudonis |
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| Rok vydání: | 2021 |
| Předmět: |
Thermogravimetric analysis
Materials science Scanning electron microscope Rietveld refinement Analytical chemistry 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Differential scanning calorimetry Ferromagnetism General Materials Science Orthorhombic crystal system 0210 nano-technology Sol-gel Solid solution |
| Zdroj: | Solid State Sciences. 111:106458 |
| ISSN: | 1293-2558 |
| DOI: | 10.1016/j.solidstatesciences.2020.106458 |
| Popis: | In this study, BiFe1-xMnxO3 (BiFeMnO; x from 0 to 0.5) solid solutions were prepared by low temperature sol-gel processing. It was demonstrated that structural, magnetic and morphological properties of BiFeMnO samples are dependent on the chemical composition of the synthesized BiFe1-xMnxO3 solid solutions. The thermal behaviour of the Bi–Fe–Mn–O precursor gels was investigated by thermogravimetric and differential scanning calorimetry (TG-DSC) measurements. From X-ray diffraction (XRD) analysis it was observed that monophasic BiFe1-xMnxO3 samples have formed up to 25 mol% of substitution. The Rietveld analysis showed that the structure of BiFeMnO specimens can be indexed by rhombohedral or orthorhombic unit cell depending on Mn3+ content. Scanning electron microscopy (SEM) was used to investigate samples morphology and revealed, that smaller particles form when Mn3+ is present inside the structure. Moreover, magnetic properties of solid solutions were also investigated, and antiferromagnetism and weak ferromagnetism were observed for the samples. |
| Databáze: | OpenAIRE |
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