Title :
Barberpole type MR head stabilized by hard magnetic films
Author :
Nagata, Yuji ; Tosaki, Yoshihiro ; Fukazawa, Toshio ; Ishizuka, Susumu ; Wada, Kumiko ; Mitani, Satom ; Nakamura, Kazuo
Author_Institution :
Audio & Video Res. Lab., Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
fDate :
11/1/1995 12:00:00 AM
Abstract :
Composite magnetic thin film heads were developed for DCC systems, which incorporate digital read/write elements and analog read elements on one head chip. In DCC heads, suppression of Barkhausen noise (BHN) and instability in reproduce characteristics is particularly important. In order to solve these problems, a new barberpole structure incorporating a new arrangement of hard magnet films on the MR films was adopted
Keywords :
Barkhausen effect; digital magnetic recording; magnetic heads; magnetic recording noise; magnetic thin film devices; magnetoresistive devices; Barkhausen noise; DCC systems; MR head; analog read elements; barberpole; composite magnetic thin film heads; digital read/write elements; hard magnetic films; instability; stabilization; Amorphous magnetic materials; Coils; Magnetic domains; Magnetic fields; Magnetic films; Magnetic flux; Magnetic heads; Magnetic materials; Magnetic noise; Saturation magnetization;
Journal_Title :
Magnetics, IEEE Transactions on
