DocumentCode
83450
Title
In-Line Sputter System Prepared 
Ordered FePt Granular Film for HAMR Application
Author
Hu, Jiang Feng ; Zhou, Tie Jun ; Phyoe, W.L. ; Cher, Kelvin M. ; Shi, Jian Zhong
Author_Institution
Data Storage Inst., Agency for Sci., Technol. & Res. (A*STAR), Singapore, Singapore
Volume
49
Issue
6
fYear
2013
fDate
Jun-13
Firstpage
2703
Lastpage
2708
Abstract
The FePt-based granular films for heat-assisted magnetic recording (HAMR) application have been developed by using the in-line sputter system. The microstructure development of the FePt-based HAMR media as a function of different doping elements and film thicknesses was investigated. The microstructure of the FePtC-Ag granular film showed a nonuniform grain size distribution. FePt-C granular films with small and uniform grains were obtained at different film thicknesses. It was found that the grain size slightly increased with the increasing film thickness. The well-isolated FePt grains with main grain size of 6.4 nm ± 0.6 nm and 6.86 ± 0.8 nm were obtained for 6 and 10 nm FePt-C granular films, respectively. The developed FePt-C granular film with well-isolated FePt grains has the potential to be used as the recording media for HAMR application.
Keywords
carbon; discontinuous metallic thin films; grain size; iron alloys; magnetic thin films; platinum alloys; silver; sputter deposition; thermomagnetic recording; FePt-C; FePt-C granular films; FePt-based HAMR media; FePt-based granular films; FePtC-Ag; FePtC-Ag granular film microstructure; doping elements; film thicknesses; heat-assisted magnetic recording application; in-line sputter system; microstructure development; nonuniform grain size distribution; ordered FePt granular film; recording media; size 10 nm; size 6 nm; uniform grains; well-isolated FePt grains; $L1_{0}$
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2013.2256777
Filename
6522283
Link To Document