Reverse Overwrite Process in Shingled Recording Process at Ultrahigh Track Density

A systematic experimental study of reverse overwrite (ReOVW) process in the shingled recording scheme has been conducted in conjunction with characterization of corresponding recording performances from recording heads with different geometries. It was found that not only is there no ReOVW reduction...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2010-06, Vol.46 (6), p.2497-2500
Main Authors: Li, Shaoping, Mendez, Hector, Terrill, Dave, Liu, Feng, Jin, Zhen, Guo, Yimin, Zhong, Lieping, Torabi, Adam, Mao, Sining
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Density
Digital magnetic recording
Digital recording
Exact sciences and technology
Geometry
Magnetic heads
Magnetic materials
Magnetic recording
Magnetism
Materials science
Other topics in materials science
Perpendicular magnetic recording
Perpendicular recording (PMR)
Physics
Recording
Recording heads
Reduction
reverse overwrite
Saturation magnetization
shingled recording
track edge noise
Tunneling magnetoresistance
Writing
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Summary:A systematic experimental study of reverse overwrite (ReOVW) process in the shingled recording scheme has been conducted in conjunction with characterization of corresponding recording performances from recording heads with different geometries. It was found that not only is there no ReOVW reduction as the track density increases, but also ReOVW is, in fact, slightly increased from 300 ktpi to 600 kpi or beyond by using the same writing conditions. These data suggest that conventional magnetic recording technology might be able to extend all the way beyond an areal density of one Tbit/in 2 by using the shingled recording scheme.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2010.2042933