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In-field 57Fe Mössbauer study of MgxZn1-xFe2O4 prepared by green synthesis method.
- Source :
- Hyperfine Interactions; 1/8/2022, Vol. 243 Issue 1, p1-15, 15p
- Publication Year :
- 2022
-
Abstract
- This work reports honey green synthesis of Mg<subscript>x</subscript>Zn<subscript>1-x</subscript>Fe<subscript>2</subscript>O<subscript>4</subscript> (x = 0.0–1.0) spinel nano ferrite (grain diameter: 25.3 nm- 33.4 nm) by sol–gel auto-combustion method. Thermally treated samples at 550 °C for 3 h, were characterized by x-ray diffraction, 'XRD' scanning-electron-microscopy-energy-dispersive-x-ray-spectroscopy 'SEM-EDS', Mössbauer spectroscopy operating at 5 K with/without 5 T magnetic field. XRD confirms spinel phase formation, and presence of α-Fe<subscript>2</subscript>O<subscript>3</subscript> (1.1–4.2%), while EDS confirms the uniform allocation of all the elements present in the studied samples. Agglomerated nano-particles are seen in SEM images. Increasing Mg-content: i) alters structural properties, ii) leads to modification of cationic population on A, B site, iii) affects A–O–A, B–O–B, A–O–B super-exchange interaction, and iv) shows linear decrease of Néel magnetic moment. Mössbauer results confirms 3+ state of Fe, and changes in local environment around Fe<superscript>3+</superscript> ion induced modification of super-exchange interaction, reflected in internal hyperfine field. Finite canting angle suggests the applicability of Yafet-Kittel (Y-K) three sub-lattice model in describing magnetic behavior of the studied samples. Due to the presence of α-Fe<subscript>2</subscript>O<subscript>3</subscript> in the studied samples, difference is observed in the inversion parameter, obtained from XRD, and Mössbauer data. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03043843
- Volume :
- 243
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Hyperfine Interactions
- Publication Type :
- Academic Journal
- Accession number :
- 154567776
- Full Text :
- https://doi.org/10.1007/s10751-022-01794-2