Structural, morphological, and magnetic features of granular TbFeO3 perovskite synthesized via direct solution combustion synthesis

• Published in: Journal of sol-gel science and technology 2024-06, Vol.110 (3), p.819-827
• Main Authors: Tikhanova, S. M., Seroglazova, A. S., Chebanenko, M. I., Nevedomskiy, V. N., Panchuk, V. V., Semenov, V. G., Volkov, M. P., Popkov, V. I.
• Format: Article
• Language: English
• Subjects: Adsorption; Antiferromagnetism; Ceramics; Chemistry and Materials Science; Combustion synthesis; Composites; Glass; Inorganic Chemistry; Low temperature; Magnetic measurement; Magnetic properties; Materials Science; Morphology; Mossbauer spectroscopy; Nanotechnology; Natural Materials; Optical and Electronic Materials; Original Paper; Perovskite structure; Perovskites; Raman spectroscopy; Spectrum analysis; Structural analysis; Temperature dependence; Terbium; Terbium orthoferrite; X ray powder diffraction
• ISSN: 0928-0707; 1573-4846
• DOI: 10.1007/s10971-024-06407-8

Terbium orthoferrite (TbFeO 3 ) perovskite demonstrates specific magnetic properties which are object of interest. Aggregated granular nanopowder of TbFeO 3 particles of 85.6 nm were obtained by direct solution combustion method. The orthorhombic perovskite structure (space group Pbnm ) of the terbium orthoferrite was confirmed by powder X-ray diffraction, Raman spectroscopy and 57 Fe Mössbauer spectroscopy. The unusual granular morphology and mesoporous structure of the nanopowder were investigated by scanning electron microscopy and adsorption-structural analysis via low-temperature (77 K) adsorption-desorption of nitrogen with a total porosity of 0.0145 cm³/g and average pore width of 12 nm. The magnetic properties of TbFeO 3 nanoparticles were thoughtfully studied, M = 34.2 emu/g at T = 10 K, H c  = 300 Oe. The onset of reorientation of the Fe 3+ spin system at T  ~ 18 K and the antiferromagnetic ordering of Tb 3+ ions at T  ~ 4 K were observed by vibrational magnetometry. Obtained results confirm the flexible paramagnetic to antiferromagnetic behavior of granular TbFeO 3 nanopowder. Graphical Abstract Highlight Granular nanopowder of TbFeO 3 was obtain by direct solution combustion method. Aggregated granular morphology of perovskite TbFeO 3 was confirmed. Magnetization of TbFeO 3 granules is in pronounced dependence of temperature.