Shingled Thermally Assisted Magnetic Recording for 8 Tbit/in $(^{{2}})$

Author

Greaves, Simon John ; Kanai, Yasukazu ; Muraoka, Hiroaki

Author_Institution

Res. Inst. for Electr. Commun., Tohoku Univ., Sendai, Japan

Volume

50

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

1

Lastpage

4

Abstract

Simulations of shingled thermally assisted magnetic recording were carried out. The head field distribution and head field gradient had little effect on the signal-to-noise ratio of shingled tracks, whereas the heat spot radius and medium parameters had a much more significant influence. An areal density of 8 Tbit/in² could be achieved with a shingled track width of 9 nm if very demanding conditions on the heat spot and recording medium parameters were met. Under more relaxed conditions areal densities in excess of 4 Tbit/in² could be expected for shingled track widths of 15 nm.

Keywords

magnetic heads; magnetic recording; head field distribution; head field gradient; recording medium parameters; shingled thermally assisted magnetic recording; shingled tracks; signal-to-noise ratio; size 15 nm; size 9 nm; Heating; Magnetic heads; Magnetic recording; Magnetization; Media; Signal to noise ratio; Heat assist; magnetic recording; simulation;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2318327

Filename

6971371