Skew Effect-Induced Track Erasure of Shingled Magnetic Recording System

One of the feasible methods to achieve ultrahigh areal density of magnetic storage system is shingled recording with bit patterned media technology. The adjacent track erasure (ATE) may take place under the impact of the skew footprint, which is associated with the initial slider state, the skewed p...

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Bibliographic Details
Published inIEEE transactions on magnetics Vol. 50; no. 11; pp. 1 - 4
Main Authors Yu, Guosheng, Chen, Jincai
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2014
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Anisotropic magnetoresistance
Bit error rate
Magnetic heads
Magnetic recording
Magnetism
Media
Writing
shingled magnetic recording
Corner angle
track erasure
skew effect
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Summary:One of the feasible methods to achieve ultrahigh areal density of magnetic storage system is shingled recording with bit patterned media technology. The adjacent track erasure (ATE) may take place under the impact of the skew footprint, which is associated with the initial slider state, the skewed pole, and the writing corner angle. A sequence of shingled trapezoidal shaped writing heads is modeled to explore the skew effect versus the writing performance. The results show that larger corner angle and narrow skew range are recommended to enhance the writing field and avoid the ATE. The analysis also suggests that hot-spot disk data in the region where the skew angle ranges from -20° to 0° has the lowest possibility to be potentially disrupted.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2014.2327660