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Properties of magnetite nanoparticles synthesized through a novel chemical route

Deepa Thapa·V. R. Palkar·M. B. Kurup·S. K. Malik
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Abstract

We have developed a simple precipitation route to synthesize magnetite (Fe3O4) nano-particles with controlled size without any requirement of calcination step at high temperatures. The study of these nano-particles indicates an enhancement in saturation magnetization with reduction in size down to ~10 nm beyond which the magnetization reduces. The latter is attributed to surface effects becoming predominant as surface to core volume ratio increases. From the view -point of applications, 10 nm size of magnetite particles seems to be the optimum.

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Deepa Thapa, V. R. Palkar, M. B. Kurup, S. K. Malik. 2004-06-08. Properties of magnetite nanoparticles synthesized through a novel chemical route. https://arxiv.org/abs/cond-mat/0406184

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