Title :
Control of the size for octahedral FePt nanoparticles and their magnetic properties
Author :
Ito, Hirotaka ; Shima, Toshiyuki ; Takanashi, Koki ; Takahashi, Yukiko K. ; Hono, Kazuhiro
Author_Institution :
Inst. for Mater. Res., Tohoku Univ., Sendai, Japan
Abstract :
Octahedral FePt nanoparticles were prepared by the alternate deposition of FePt and MgO layers on MgO(001) single crystal substrates. The formation of highly ordered L10 structure with the [001] orientation perpendicular to the plane was confirmed by X-ray diffraction. Cross-sectional transmission electron microscope observation clearly showed that the size of the octahedral FePt nanoparticles can be controlled by the repetition number of FePt and MgO layers.
Keywords :
X-ray diffraction; coercive force; iron alloys; magnesium compounds; magnetic recording; nanoparticles; nanopatterning; platinum alloys; size control; sputtered coatings; transmission electron microscopy; FePt; MgO; alternate deposition; magnetic property; octahedral nanoparticles; single crystal substrates; size control; transmission electron microscopy; x-ray diffraction; Electrons; Magnetic films; Magnetic materials; Magnetic properties; Nanoparticles; Size control; Sputtering; Substrates; X-ray diffraction; X-ray scattering; FePt; MgO; octahedral nanoparticle; sputtering;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.855351
