Shingled magnetic recording on bit patterned media

Simon Greaves; Yasushi Kanai; Hiroaki Muraoka

doi:10.1109/TMAG.2010.2043221

Shingled magnetic recording on bit patterned media

Simon Greaves, Yasushi Kanai, Hiroaki Muraoka

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Shingled magnetic recording on bit patterned media with areal densities of 24 Tbit/in² is examined. The use of a shingled recording scheme allows wider write poles and dots with higher anisotropy to be used. The down-track and cross-track write margins can be tailored to suit the tolerances of the drive by varying the bit cell aspect ratio. Readback waveforms are calculated for sensors of various size, including the effect of thermal noise in the sensor, and the combination of a wide sensor and bit aspect ratio (BAR) of 1:1 is found to give the highest SNR.

Original language	English
Article number	5467475
Pages (from-to)	1460-1463
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	46
Issue number	6
DOIs	https://doi.org/10.1109/TMAG.2010.2043221
Publication status	Published - 2010 Jun

Keywords

Bit patterned perpendicular media
Heads
Magnetic recording
Simulation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2010.2043221

Cite this

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title = "Shingled magnetic recording on bit patterned media",

abstract = "Shingled magnetic recording on bit patterned media with areal densities of 24 Tbit/in2 is examined. The use of a shingled recording scheme allows wider write poles and dots with higher anisotropy to be used. The down-track and cross-track write margins can be tailored to suit the tolerances of the drive by varying the bit cell aspect ratio. Readback waveforms are calculated for sensors of various size, including the effect of thermal noise in the sensor, and the combination of a wide sensor and bit aspect ratio (BAR) of 1:1 is found to give the highest SNR.",

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author = "Simon Greaves and Yasushi Kanai and Hiroaki Muraoka",

note = "Funding Information: This work was supported in part by the Research and Development for Next Generation Information Technology project of the MEXT, Japanese Government, and by a Grant in Aid from the Japan Society for the Promotion of Science (#21 560 374) and the Storage Research Consortium, Japan.",

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AU - Greaves, Simon

AU - Kanai, Yasushi

AU - Muraoka, Hiroaki

N1 - Funding Information: This work was supported in part by the Research and Development for Next Generation Information Technology project of the MEXT, Japanese Government, and by a Grant in Aid from the Japan Society for the Promotion of Science (#21 560 374) and the Storage Research Consortium, Japan.

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AB - Shingled magnetic recording on bit patterned media with areal densities of 24 Tbit/in2 is examined. The use of a shingled recording scheme allows wider write poles and dots with higher anisotropy to be used. The down-track and cross-track write margins can be tailored to suit the tolerances of the drive by varying the bit cell aspect ratio. Readback waveforms are calculated for sensors of various size, including the effect of thermal noise in the sensor, and the combination of a wide sensor and bit aspect ratio (BAR) of 1:1 is found to give the highest SNR.

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KW - Simulation

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Shingled magnetic recording on bit patterned media

Abstract

Keywords

ASJC Scopus subject areas

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