DocumentCode
1191852
Title
Examination of newly developed metal particle media for >3 gb/in2 recording in GMR-based tape systems
Author
Sekiguchi, Noboru ; Kawakami, Kikuji ; Ozue, Tadashi ; Yamaga, Minoru ; Onodera, Seiichi
Author_Institution
Sendai Technol. Center, SONY Corp., Miyagi, Japan
Volume
41
Issue
10
fYear
2005
Firstpage
3235
Lastpage
3237
Abstract
New metal particle (MP) media was developed for use with giant magnetoresistive (GMR) heads. We confirmed the capability of constructing a helical scan magnetic recording system exceeding 3 Gb/in2 recording density, because of sufficient signal-to-noise ratio (SNR) under test conditions at 6.74 Gb/in2 of read-track-base calculations with the media (magneticlayerthickness=50 nm, magneticparticlesize=45 nm, and surfaceroughness Ra=1.8 nm). Low media partial-abrasive properties are incorporated to avoid excessive head gap material wear.
Keywords
giant magnetoresistance; magnetic heads; magnetic particles; magnetic recording; magnetic tapes; spin valves; 1.8 nm; 45 nm; 50 nm; GMR head; GMR-based tape system; SNR; areal recording density; giant magnetoresistive head; helical scan magnetic recording system; magnetic layer thickness; magnetic particle size; metal particle media; metal particle tape; partial-abrasive property; read-track-base calculation; signal-to-noise ratio; spin-valve head; surface roughness; Anisotropic magnetoresistance; Coatings; Electrostatic discharge; Giant magnetoresistance; Magnetic heads; Magnetic materials; Magnetic recording; Rough surfaces; Surface roughness; Testing; Areal recording density; metal particle (MP) tape; partial abrasive; spin-valve head;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2005.855246
Filename
1519264
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