Title :
Exchange coupling optimization on CoPtCrO perpendicular media
Author :
Ikeda, Yoshihiro ; Takano, Kentaro ; Supper, Natacha ; Do, Hoa ; Sonobe, Yoshiaki ; Lengsfield, Byron
Author_Institution :
IBM Almaden Res. Center, San Jose, CA, USA
fDate :
March 30 2003-April 3 2003
Abstract :
In this paper, medium noise and exchange coupling correlation have been investigated by changing the oxygen ratio in the sputter gas. To determine the amount of intergranular exchange coupling in this media, the experimental results were modeled using numerical simulation.
Keywords :
chromium alloys; cobalt alloys; magnetic hysteresis; magnetic noise; magnetic thin films; platinum alloys; sputtered coatings; CoPtCrO; CoPtCrO perpendicular media; exchange coupling correlation; intergranular exchange coupling; magnetic hysteresis; medium noise; oxygen ratio; sputter gas; Anisotropic magnetoresistance; Coercive force; Magnetic anisotropy; Magnetic noise; Noise reduction; Numerical simulation; Performance evaluation; Perpendicular magnetic anisotropy; Perpendicular magnetic recording; Signal to noise ratio;
Conference_Titel :
Magnetics Conference, 2003. INTERMAG 2003. IEEE International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7647-1
DOI :
10.1109/INTMAG.2003.1230495
