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Effects of annealing time on structural and magnetic properties of L10-FePt nanoparticles synthesized by the SiO2-nanoreactor method

Y. Tamada·Y. Morimoto·S. Yamamoto·M. Takano·S. Nasu·T. Ono
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Abstract

We investigated effects of annealing time on structural and magnetic properties of the L10-FePt nanoparticles synthesized by the SiO2-nanoreacter method. The magnetization and powder X-ray diffraction studies revealed that the annealing at 900 oC for 9 hr could convert all of the fcc-nanoparticles to the well-crystallized L10 structure with a large coercivity while keeping their particle size. Such monodisperse and highly crystalline L10-FePt nanoparticles are a promising material for the realization of ultra-high density recording.

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Y. Tamada, Y. Morimoto, S. Yamamoto, M. Takano, S. Nasu, T. Ono. 2006-07-06. Effects of annealing time on structural and magnetic properties of L10-FePt nanoparticles synthesized by the SiO2-nanoreactor method. https://doi.org/10.1016/j.jmmm.2006.10.739

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