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Magnetic Properties and Mössbauer Investigation of LaFe0.75Cr0.25O3 Perovskite.
- Source :
- Journal of Superconductivity & Novel Magnetism; Nov2022, Vol. 35 Issue 11, p3271-3275, 5p
- Publication Year :
- 2022
-
Abstract
- In this paper, LaFe<subscript>0.75</subscript>Cr<subscript>0.25</subscript>O<subscript>3</subscript> was synthesized by a citric acid combusting sol–gel method. The basic structural information is reflected by XRD. According to Mössbauer spectroscopy, the inhomogeneous distribution of Cr contributes to magnetic dilution, thus appearing the coexistence of singlet and sextet. Simultaneously, the rare superparamagnetic relaxation appears due to "critical superparamagnetism" caused by small magnetic clusters with intervening sizes. Oxygen vacancies of synthesized sample are also found. The DC magnetization curve reveals the magnetization reversal phenomenon, which is related to the competition between the Dzyaloshinsky–Moriya interaction (DMI) and the magnetic anisotropy belonging to single ions. At 300 K, LCFO reveals weak magnetism. No magnetic transition is observed below 400 K. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15571939
- Volume :
- 35
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Journal of Superconductivity & Novel Magnetism
- Publication Type :
- Academic Journal
- Accession number :
- 159758607
- Full Text :
- https://doi.org/10.1007/s10948-022-06376-5