Radius and Skew Effects in an HAMR Hard Disk Drive

Over the past year, heat-assisted magnetic recording (HAMR) has continued to make significant progress toward production and remains the most promising technology to enable areal density growth beyond 1 Tb/in 2 . In this paper, we present an experimental study on the effects of disk radius and head...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on magnetics Vol. 52; no. 2; pp. 1 - 7
Main Authors Cordle, Michael A., Mader, Drew M., Granz, Steven D., Chu, Alfredo S., Pu-Ling Lu, Martens, Frank, Qi, Ying, Rausch, Tim, Riddering, Jason W., Gao, Kaizhong
Format Journal Article
LanguageEnglish
Published New York IEEE 01.02.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bit error rate
Drives
Hard-disk drive
Heat-assisted magnetic recording
heat-assisted magnetic recording (HAMR)
Heating
Magnetic heads
magnetic recording
Magnetism
Media
Temperature measurement
heat-assisted magnetic recording (HAMR)
magnetic recording
Hard disk drive (HDD)
Online AccessGet full text

Cover

More Information
Summary:Over the past year, heat-assisted magnetic recording (HAMR) has continued to make significant progress toward production and remains the most promising technology to enable areal density growth beyond 1 Tb/in 2 . In this paper, we present an experimental study on the effects of disk radius and head skew angle in a HAMR hard disk drive. We demonstrate the dependence of laser power on disk radius and the sensitivities to several additional factors that can potentially change that characteristic. We also contrast adjacent track interference and areal density capability performance in drive to conventional perpendicular recording and their respective sensitivities to radius and skew angle.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2015.2478115