DocumentCode :
22971
Title :
HAMR Recording Limitations and Extendibility
Author :
Xiaobin Wang ; Kaizhong Gao ; Hua Zhou ; Itagi, A. ; Seigler, Mike ; Gage, Edward
Author_Institution :
Seagate Technol., Bloomington, MN, USA
Volume :
49
Issue :
2
fYear :
2013
fDate :
Feb. 2013
Firstpage :
686
Lastpage :
692
Abstract :
Heat-assisted magnetic recording (HAMR) limitations and extendibility are studied in light of the recent 1.0 Tb/in2 technology demonstration. The paper examines HAMR specific technology challenges, including switching field distributions at elevated temperature, saturation noise, and near-field transducer (NFT) thermal spot-size limits. While current HAMR recording density ( ~ 1 Tb/in2) is limited by switching field distribution and thermal spot size, ultimate HAMR density (up to 5 Tb/in2) is determined by achievable recording-layer magnetic anisotropy and grain size.
Keywords :
grain size; magnetic anisotropy; magnetic recording noise; magnetic switching; transducers; HAMR recording density; HAMR recording limitations; HAMR specific technology; elevated temperature; grain size; heat-assisted magnetic recording limitations; near-field transducer thermal spot-size limits; recording-layer magnetic anisotropy; saturation noise; switching field distributions; thermal spot size; Heat-assisted magnetic recording; Jitter; Magnetization; Media; Noise; Switches; Heat-assisted magnetic recording; near-field optics; saturation; switching field distribution; thermal spot size;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2012.2221689
Filename :
6417006
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=22971
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