Session P1: Posters and Coffee Break
3:30 PM–3:30 PM, Friday, October 6, 2006
UT Arlington, University Center Room: Rio Grande, 3:30pm-5:30pm
Chair: Robert Ramsey, Pete Williams, Marcus Hawkins, Heather Brown, University of Texas at Arlington
Abstract ID: BAPS.2006.TSF.P1.25
Abstract: P1.00025 : Synthesis and properties of bimagnetic core-shell nanoparticles
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Abstract 
Authors:
Vikas Nandwana
Girija Chaubey
Kazuaki Yano
Ping Liu
(University of Texas at Arlington)
Bimagnetic core-shell nanoparticles are synthesized from high-temperature solution phase coating of FePt core with tunable Fe$_{3}$O$_{4, }$CoFe$_{2}$O$_{4}$ or FeCo shell. Magnetic properties of the as-synthesized core-shell particles are dependent on shell material and its thickness due to the exchange coupling between core and shell. Upon reductive annealing, an assembly of the core/shell nanoparticles is transformed into a hard magnetic nanocomposite with enhanced energy product which is 30{\%} higher than single FePt phase. With proper choice of materials and dimension tuning of both core and shell, these core-shell nanoparticles may be used as building blocks for creation of novel functional nanomaterials for various magnetic applications.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2006.TSF.P1.25