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>

Synthesis, structural and magnetic properties of MnxNi1-xFe2O4 nanoferrites

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

Speaker

Dr Hafiz M I Abdallah (University of KwaZulu-Natal)

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

Glycol-thermal technique was used for the synthesized MnxNi1-xFe2O4 (x = 0.1, 0.3, 0.5) nanoparticle ferrites from high-purity metal chlorides. Structure parameters and magnetic properties were investigated using X-ray powder diffraction (XRD), 57Fe Mössbauer spectroscopy, vibrating sample magnetometer (VSM) on a cryogen free measurement system. XRD results confirmed single-phase formation of the as-prepared samples with average crystallite sizes of about 8 nm having Fd3m space group. The microstrains for the as-prepared samples were relieved by increasing Mn- concentration, x, while the coercivity and lattice parameters were decreased. Temperature and magnetic field dependences as a function of magnetization for the as-prepared sample at = 0.5 in external field of up to 5 T and at isothermal temperatures ranged from 2 K to 300 K. Tiny values of coercive fields indicate superparamagnetic like-behavior of studied compounds are also investigated.

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

No

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

Dr. Thomas Moyo

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

PhD

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

Yes

Primary author

Dr Hafiz M I Abdallah (University of KwaZulu-Natal)

Co-author

Dr Thomas Moyo (University of KwaZulu-Natal)

Presentation Materials

There are no materials yet.