Title :
The synthesis and magnetic properties of Co(Fe)Pt nanoparticles
Author :
Du, J. ; Baoru, B. ; Xia, W. ; Zhang, J. ; Yan, A. ; Liu, J.
Author_Institution :
Ningbo Inst. of Mater. Technol. & Eng., Ningbo, China
Abstract :
Herein we report a one-step solid-phase synthesis of homogenous 12 nm CoPt@C NPs with single crystal and L10 structure . This process involves simultaneous decomposition of precursors of Co(acac)2 and Pt(acac)2 and sintering at high temperature under solid phase condition . The growth mechanism was deeply investigated by TEM . Evolution of the core-shell structure during the synthesising process is clearly observed and presented . Its growth mechanism is through particle/ cluster to particle/cluster, which is different from the widely accepted OR(Osterwald Ripening) and OA(Oriented Attachment) in solution phase growth. This solid-phase synthesis of nanoparticles and its growth mechanism are new and very useful in the field of nano-synthesis.
Keywords :
carbon; cobalt alloys; core-shell nanostructures; iron alloys; magnetic anisotropy; magnetic particles; nanofabrication; nanomagnetics; nanoparticles; platinum alloys; sintering; transmission electron microscopy; CoFePt; CoPt-C; L10 structure; TEM; core-shell structure; decomposition; growth mechanism; magnetic properties; nanoparticles; one-step solid-phase synthesis; single crystal; sintering; size 12 nm; uniaxial magnetocrystalline anisotropy; Magnetic properties; Magnetic recording; Media; Nanoparticles; Perpendicular magnetic anisotropy; Physics;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157446
