Monodispersed and highly ordered L10 FePt nanoparticles prepared in the gas phase
- 8 May 2006
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 88 (19)
- https://doi.org/10.1063/1.2202130
Abstract
We report the direct preparation of monodispersed L10 phase FePt nanoparticles by controlled nucleation and growth using a gas phase aggregation source. These FePt nanoparticles became ordered during their growth in an argon gas flow. They are octahedron faceted with an average size of 5.8nm and a standard size distribution of 11%, as illustrated by transmission electron microscope. Magnetic measurements show that these FePt nanoparticles have coercivities of 8.25kOe at room temperature and 26.5kOe at 50K. This technique provides a novel approach for fabricating nanomaterials with controllable phase and shape in general.Keywords
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