Heat-Assisted Magnetic Recording

Author

Rottmayer, Robert E. ; Batra, Sharat ; Buechel, Dorothea ; Challener, William A. ; Hohlfeld, Julius ; Kubota, Yukiko ; Li, Lei ; Lu, Bin ; Mihalcea, Christophe ; Mountfield, Keith ; Pelhos, Kalman ; Peng, Chubing ; Rausch, Tim ; Seigler, Michael A. ; Well

Author_Institution

Seagate Technol., Pittsburgh, PA

Volume

42

Issue

10

fYear

2006

Firstpage

2417

Lastpage

2421

Abstract

Due to the limits of conventional perpendicular magnetic recording, it appears that alternative technologies are needed at areal densities >500 Gb/in². Heat-assisted magnetic recording (HAMR) is a promising approach to extend areal densities to 1 Tb/in² and beyond. All of the unique components necessary for a working HAMR system have been demonstrated. Although HAMR permits writing on high Hc media with lower magnetic fields and can produce higher write gradients than conventional magnetic recording, head/media spacing and the development of high Hc media with small grains remains challenging

Keywords

magnetic heads; perpendicular magnetic recording; HAMR system; head-media spacing; heat-assisted magnetic recording; magnetic fields; perpendicular magnetic recording; write gradients; Costs; Disk recording; Heat-assisted magnetic recording; Jitter; Kalman filters; Magnetic heads; Magnetic materials; Magnetic recording; Magnetooptic recording; Perpendicular magnetic recording; Heat-assisted magnetic recording (HAMR); high-density recording;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.879572

Filename

1704318