8-12 July 2013
Africa/Johannesburg timezone
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Synthesis and magnetic characterizations of MnxFe3-xO4 nanoferrites

Presented by Dr. Hafiz M I ABDALLAH on 9 Jul 2013 from 17:40 to 18:40
Type: Poster Presentation
Session: Poster1
Track: Track A - Division for Condensed Matter Physics and Materials

Abstract

Manganese ferrite nanoparticles with in steps of 0.1 have been produced using the glycol-thermal method at 200 oC. Single-phase formation was confirmed by X-ray powder diffraction (XRD) which revealed a well-defined cubic spinel structure with space group Fd3m. structure parameters were also estimated from XRD data. Average crystallite sizes ranged from 8.91 to 9.77 nm. The Vibrating sample magnetometer measurements show that the produced nanoparticles exhibit superparamagnetics behavior at room temperature. Magnetic properties as a function of the manganese content measured at 300 K were also investigated. The Fe3+ ions distributions among tetrahedral and octahedral sites, hyperfine parameters and magnetic state of the as-prepared samples were studied using 57Fe Mössbauer spectroscopy technique.

Award

No

Level

PhD

Supervisor

Dr. Thomas Moyo

Paper

Yes

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