Nanotech 2006 Vol. 1
Nanotech 2006 Vol. 1
Technical Proceedings of the 2006 NSTI Nanotechnology Conference and Trade Show, Volume 1

Nanoparticle Processes & Applications Chapter 4

Tailoring FePt-Fe3O4 exchange spring coupling magnet in silica

Authors: C.H. Yu, C.C.H. Lo, K.Y. Tam and S.C. Tsang

Affilation: University of Reading, United Kingdom

Pages: 415 - 418

Keywords: exchange spring coupling, nano-magnet, encapsulation

We report the optimization of exchange spring coupling of<br>FePt/Fe3Pt nanocomposites via independently tuning their size and composition by a micro-emulsion method. These nanocomposites are deliberately placed in each silica<br>nano-spheres such that the problem of their sintering is substantially reduced by the presence of silica overlayers during annealing of the mixture. As a result, size tailoring<br>of FePt/Fe3Pt in their L10/L12 phases respectively, can be, for the first time, demonstrated.

ISBN: 0-9767985-6-5
Pages: 871
Hardcopy: $119.95

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