Yu C.H., Lo C.C.H., Tam K.Y., Tsang S.C.
University of Reading, UK
Keywords: encapsulation, exchange spring coupling, nano-magnet
We report the optimization of exchange spring coupling of
FePt/Fe3Pt nanocomposites via independently tuning their size and composition by a micro-emulsion method. These nanocomposites are deliberately placed in each silica
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
of FePt/Fe3Pt in their L10/L12 phases respectively, can be, for the first time, demonstrated.
Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2006 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: May 7, 2006
Pages: 415 - 418
Industry sector: Advanced Materials & Manufacturing
Topic: Nanoparticle Synthesis & Applications
ISBN: 0-9767985-6-5