High-anisotropy nanocluster films for high-density perpendicular recording

Author

Sellmyer, David J. ; Yan, Minglang ; Xu, Yingfan ; Skomski, Ralph

Author_Institution

Anal. & Dept. of Phys. & Astron., Univ. of Nebraska, Lincoln, NE, USA

Volume

41

Issue

2

fYear

2005

Firstpage

560

Lastpage

565

Abstract

This paper reports results on the synthesis and magnetic properties of L1₀:X nanocomposite films, where L1₀=FePt, CoPt, and X=C, Ag, etc. Two fabrication methods are discussed: nonepitaxial growth of oriented perpendicular media, and monodispersed nanoparticle-assembled films grown with a gas-aggregation source. The magnetic properties are controllable through variations in the nanocluster properties and nanostructure. The films show promise for development as recording media at extremely high areal densities.

Keywords

carbon; cobalt compounds; ferromagnetic materials; iron compounds; magnetic anisotropy; magnetic particles; magnetic thin films; nanocomposites; nanoparticles; perpendicular magnetic recording; silver; CoPt:Ag; CoPt:C; FePt:Ag; FePt:C; L1₀ phase; fabrication methods; gas-aggregation source; high-anisotropy nanocluster films; high-density perpendicular recording; magnetic properties; monodispersed nanoparticle-assembled films; nanocluster properties; nanocomposite films; nanostructure; nonepitaxial growth; oriented perpendicular media; Anisotropic magnetoresistance; Annealing; Fabrication; Grain size; Iron; Magnetic films; Magnetic multilayers; Magnetic properties; Perpendicular magnetic recording; Temperature; High-anisotropy; nanoclusters; perpendicular recording;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.838072

Filename

1396180