Abstract
SnFe2O4 nanoparticles have found wide applicability in recent times. An investigation of the thermal behaviour is important for its utility in dielectric/energy applications that involves heat treatment. The present work reports the synthesis of SnFe2O4 nanoparticles and the investigation of the thermal stability, magnetic and electrical properties on annealing. SnFe2O4 nanoparticles were synthesized by the solvothermal method and characterized using Thermogravimetry, X-ray diffractometry, Scanning and Transmission Electron Microscopy and Vibrating Sample Magnetometry. The spinel structured SnFe2O4 nanoparticles showed superparamagnetic behaviour with MS = 10.5 emu/g and paramagnetic transition at 517°C. On annealing in air between 300°C and 1100°C, the spinel phase was found to be stable until 500°C, but decomposed to tetragonal and hexagonal Fe–Sn oxides beyond 550°C. The resultant oxides were antiferromagnetic or weakly ferromagnetic. Electrical measurements revealed large dielectric constant (∼104) and dielectric loss <9 over a wide frequency range for SnFe2O4 and the decomposed Fe–Sn oxides.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
