Title :
Low noise Co/Pd multilayer media for perpendicular magnetic recording
Author :
Wu, Lianjun ; Honda, Naoki ; Ouchi, Kazuhiro
Author_Institution :
Akita Res. Inst. of Adv. Technol., Japan
fDate :
9/1/1999 12:00:00 AM
Abstract :
Read-write tests and magnetic force microscopy (MFM) observations have been performed for Co/Pd multilayer perpendicular magnetic recording media. For a Co/Pd multilayer medium with a nucleation field (Hn) of~1.5 kOe and a small slope at coercivity (Hc), no reversed magnetic domains between the transitions were observed and a low medium noise was also obtained. Moreover, a negligible time decay in magnetization was detected at the remanent state as well as in signals at both low and high recording densities
Keywords :
cobalt; coercive force; magnetic domains; magnetic force microscopy; magnetic multilayers; magnetic recording noise; magnetisation reversal; nucleation; palladium; perpendicular magnetic recording; remanence; Co-Pd; Co/Pd multilayer; coercivity; magnetic domain reversal; magnetic force microscopy; magnetic transition; magnetization time decay; noise; nucleation field; perpendicular magnetic recording; read-write testing; remanence; Coercive force; Magnetic domains; Magnetic force microscopy; Magnetic forces; Magnetic multilayers; Magnetic noise; Magnetization; Performance evaluation; Perpendicular magnetic recording; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
