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

Volume

41

Issue

10

fYear

2005

Firstpage

3373

Lastpage

3375

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.855351

Filename

1519310