Title :
Dynamic read/write performance characterization of perpendicular recording
Author :
Tanaka, Yoichiro ; Takeo, Akihiko ; Hikosaka, Takashi
Author_Institution :
Data Storage Dev. Center, Toshiba Corp., Tokyo, Japan
Abstract :
Double-layer perpendicular recording media employing high squareness magnetic properties have been developed and tested with single-pole perpendicular heads. Dynamic performance tests revealed that double-layer perpendicular media exhibited high output signal, high resolution, and superior write performance at the same time. Signal decay tests also indicated superior thermal stability. Drive integration test with a 42 kTPI (1654 track/mm) system showed comparable tracking servo performance to conventional systems.
Keywords :
magnetic heads; perpendicular magnetic recording; thermal stability; double-layer perpendicular recording media; dynamic read/write performance characterization; output signal; perpendicular recording; resolution; signal decay tests; single-pole perpendicular heads; squareness; thermal stability; tracking servo performance; write performance; Disk recording; Magnetic flux; Magnetic heads; Magnetic properties; Magnetization; Memory; Perpendicular magnetic recording; Temperature dependence; Testing; Thermal stability;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.988913
