Title :
Structural and magnetic properties of FePt-Ag composite film with perpendicular magnetic anisotropy
Author :
Kang, Kyongha ; Yang, Tao ; Suzuki, Takao
Author_Institution :
Inf. Storage Lab., Toyota Technol. Inst., Nagoya, Japan
fDate :
9/1/2002 12:00:00 AM
Abstract :
Multilayer films of (FePt 2 nm/Ag 5 nm) × 10 are synthesized on MgO [100] substrate using laser ablation. The layered structure of the multilayers thus fabricated is preserved even after annealing at 600°C for 15 min. The annealed multilayer films exhibit high perpendicular magnetic anisotropy composed of the L10 phase. A Barkhausen volume VB is found to be as small as 10-19 cm3.
Keywords :
Barkhausen effect; annealing; iron alloys; magnetic multilayers; perpendicular magnetic anisotropy; perpendicular magnetic recording; platinum alloys; pulsed laser deposition; silver; 15 min; 2 nm; 5 nm; 600 degC; Barkhausen volume; FePt-Ag; FePt-Ag composite film; MgO; MgO [100] substrate; annealing; crystal structure; high perpendicular magnetic anisotropy; high-density perpendicular magnetic recording; laser ablation; layered structure; magnetic properties; multilayer films; perpendicular magnetic anisotropy; structural properties; Annealing; Laser ablation; Magnetic films; Magnetic multilayers; Magnetic properties; Magnetization; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Substrates; X-ray diffraction;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.801826
