Presentation 2021-12-10
Effect of dot thickness and diameter in dual-structure heat-assisted magnetic recording on bit patterned media
Simon Greaves, Hikaru Yamane, Ichiro Tanaka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Dual structure bit patterned media were optimised for heat assisted magnetic recording. Each dot contained two discrete recording structures and was therefore able to store two bits of information. The optimised parameters were the dot diameter and the thicknesses of the recording structures. Analysis of the thermal stability of the magnetisation at elevated temperatures suggested a design with a thicker recording structure on the bottom, where the head field was weaker, and a thinner structure on the top. Recording simulations showed that the optimal design could lead to user areal recording densities in excess of 9 Tbit/in2.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) HAMR / patterned media
Paper # MRIS2021-15
Date of Issue 2021-12-03 (MRIS)

Conference Information
Committee MRIS / ITE-MMS
Conference Date 2021/12/10(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Signal Processing and Others
Chair Shuhei Yoshida(Kinki Univ.) / Kenji Machida(NHK)
Vice Chair
Secretary (Tohoku Inst. of Tech.) / (AIST)
Assistant Yasuaki Nakamura(Ehime Univ.) / Yoshiyuki Hirayama(Samsung)

Paper Information
Registration To Technical Committee on Magnetic Recording & Information Storage / Technical Group on Multi-media Storage
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Effect of dot thickness and diameter in dual-structure heat-assisted magnetic recording on bit patterned media
Sub Title (in English)
Keyword(1) HAMR
Keyword(2) patterned media
1st Author's Name Simon Greaves
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Hikaru Yamane
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
3rd Author's Name Ichiro Tanaka
3rd Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2021-12-10
Paper # MRIS2021-15
Volume (vol) vol.121
Number (no) MRIS-291
Page pp.pp.32-37(MRIS),
#Pages 6
Date of Issue 2021-12-03 (MRIS)