Structure, magnetic properties, and cycloidal spin ordering in Nd-doped BiFeO3 synthesized by sol-gel method
Artykuł w czasopiśmie
MNiSW
100
Lista 2024
| Status: | |
| Autorzy: | Komędera Kamila, Siedliska Karolina, Gondek Łukasz, Nałęcz Dawid M., Panek Rafał, Krupska-Klimczak Magdalena, Jankowska-Sumara Irena, Tokarz Wojciech, Tabiś Wojciech, Pikula Tomasz |
| Dyscypliny: | |
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| Rok wydania: | 2025 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 6 |
| Wolumen/Tom: | 51 |
| Strony: | 7208 - 7216 |
| Impact Factor: | 5,6 |
| Web of Science® Times Cited: | 3 |
| Scopus® Cytowania: | 3 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | The work at AGH University was supported by the National Science Centre, Poland, Grant OPUS: 2021/41/B/ST3/03454; the Polish National Agency for Academic Exchange under “Polish Returns 2019” Programme No. PPN/PPO/2019/1/00014; and the “Excellence Initiative-Research University” program for AGH University of Krakow. The work at TU Wien was supported by FWF Project P 35945-N; and the OeAD (Österreichische Austauschdienst)-GmbH Austro-Serbian Project No. RS24/2022 |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| In this study the structural and magnetic properties of Nd-doped BiFeO3 materials with the formula Bi1-xNdxFeO3 (x = 0–0.2) were investigated. Samples were prepared using the sol-gel method and annealed at 823 K for 4 h. Microstructural studies indicated that nanomaterials with an average grain size of less than 100 nm were produced, with the smallest grain size observed for the solid solution with x = 0.15. Rietveld analysis of diffraction patterns revealed a composition-driven transformation from the rhombohedral (R3c) lattice to the orthorhombic (Pbam) structure. The above finding is correlated to Mössbauer spectroscopy data, which demonstrated the gradual destruction of the spin cycloid due to the structural transformation to the Pbam structure. The spectra were analyzed using a complex hyperfine magnetic field distribution model reflecting cycloidal spin ordering. Scanning differential calorimetry revealed that for the investigated materials the magnetic ordering temperatures are close to 640 K, independently from the Nd concentration. Magnetic measurements showed the emergence of weak ferromagnetic properties with increasing Nd ions concentration, consistently with Mössbauer spectroscopy data. |
