MnO and NiO nanoparticles: synthesis and magnetic properties

Ghosh, Moumita and Biswas, Kanishka and Sundaresan, A and Rao, CNR (2006) MnO and NiO nanoparticles: synthesis and magnetic properties. In: Journal of Materials Chemistry, 16 (1). pp. 106-111.

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Abstract

Nanoparticles of MnO with average diameters in the 6-14 nm range have been prepared by the decomposition of manganese cupferronate in the presence of TOPO, under solvothermal conditions. Nanoparticles of NiO with average diameters in the 3-24 nm range have been prepared by the decomposition of nickel cupferronate or acetate under solvothermal conditions. The nanoparticles have been characterized by X-ray diffraction and transmission electron microscopy. Both MnO and NiO nanoparticles exhibit supermagnetism, accompanied by magnetic hysteresis below the blocking temperature $(T_{B})$. The $T_{B}$ increases with the increase in particle size in the case of NiO, and exhibits the reverse trend in the case of MnO.

Item Type:	Journal Article
Publication:	Journal of Materials Chemistry
Publisher:	Royal Society of Chemistry
Additional Information:	Copyright for this article belongs to Royal Chemistry of Society.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	10 Jan 2006
Last Modified:	19 Sep 2010 04:22
URI:	http://eprints.iisc.ac.in/id/eprint/5013

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