DocumentCode :
840653
Title :
Preliminary investigation for a cylindrical magnetic storage system
Author :
Yamada, Hiroshi ; Shimatsu, Takehito ; Watanabe, Isao ; Muraoka, Hiroaki ; Nakamura, Yoshihisa
Author_Institution :
Tohoku Univ., Sendai, Japan
Volume :
39
Issue :
6
fYear :
2003
Firstpage :
3619
Lastpage :
3621
Abstract :
A cylindrical magnetic storage system was built and preliminary measurements were made. The system is expected to overcome the writing problems at high areal densities caused by write head skew angle and is aimed at the realization of 1 Tb/in2 2 Gb/s perpendicular magnetic recording. Cylindrical substrates, sputtering equipment, and a read/write tester for a cylindrical magnetic storage were fabricated. For this preliminary investigation, the length and diameter of the cylindrical substrates were 1 in. Thin films (protective layer, storage layer, seed layer, etc.) were deposited by rotating the cylindrical substrate during the sputtering process. Fundamental read/write characteristics were measured using an 8 mm video-tape-recorder metal-in-gap head and a merged giant magnetoresistive head with a pico-slider.
Keywords :
giant magnetoresistance; magnetic storage; magnetic thin films; perpendicular magnetic recording; sputter deposition; 1 in; 2 Gbit/s; 8 mm; VTR metal-in-gap head; cylindrical magnetic storage system; cylindrical substrates; giant magnetoresistive head; high areal density; perpendicular magnetic recording; pico-slider; protective layer; read/write tester; seed layer; sputtering equipment; storage layer; terabit storage; thin film sputter deposition; write head skew angle; Hydraulic actuators; Magnetic anisotropy; Magnetic heads; Magnetic memory; Perpendicular magnetic recording; Protection; Sputtering; Substrates; Testing; Writing;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2003.815433
Filename :
1252846
Link To Document :
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