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Composition-Mediated Order-Disorder Transformation in FePt Nanoparticles...

by Aaron C Johnston-peck, David A Cullen, Joseph Tracy
Publication Type
Journal
Journal Name
Particle & Particle Systems Characterization
Publication Date
Page Numbers
678 to 682
Volume
30
Issue
8

Thumbnail image of graphical abstract

Heat-treated alloy FePt nanoparticles transform into L10 FePt and mixed L10/L12 FePt3 intermetallic phases. Enrichment in Pt in some nanoparticles, rather than intrinsic thermodynamic effects, drives phase segregation. FePt nanoparticles of uniform, equimolar composition are expected to transform into phase-pure, highly ordered L10 FePt nanoparticles.