Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.838072
