8-12 July 2013
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=13&confId=32"><font color=#ff0000>SAIP2013 PROCEEDINGS AVAILABLE</font></a>

Magnetic properties of Sn0.2Cr1.8-xFexO4 nanooxides.

9 Jul 2013, 17:40
1h
Poster Presentation Track A - Division for Condensed Matter Physics and Materials Poster1

Speaker

Mr Kalengay Mbela (UKZN)

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

yes

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

PhD

Main supervisor (name and email)<br>and his / her institution

Thomas Moyo (Moyo@ukzn.ac.za

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

yes

Abstract content <br> &nbsp; (Max 300 words)

We report the magnetic properties of Sn0.2Cr1.8-xFexO4 (x = 0.3, 0.5, 0.7 and 0.9) compounds. The oxides were produced by hydrothermal process and sintered at 600 ºC for 12 hours. The X-ray diffraction (XRD) data indicate formation of single phase corundum structure in all the samples. The Mössbauer spectra recorded at about 300 K show transition from paramagnetic to ordered magnetic spin state at x = 0.5. The magnetization data have been obtained by using a VSM (PPMS) of Quantum design make. The exchange bias effect has been observed at low temperatures in all the samples.

Keywords: Exchange bias, Nanoparticles, Magnetization,

Primary author

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