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Title: Exchange coupling assisted FePtC perpendicular recording media
Authors: Hu, J.F.
Chen, J.S. 
Ding, Y.F.
Lim, B.C.
Lwin, P.W.
Liu, B.
Keywords: Exchange coupling assisted media
Exchange spring media
L10 phase FePt
Perpendicular magnetic recording
Issue Date: Nov-2008
Citation: Hu, J.F., Chen, J.S., Ding, Y.F., Lim, B.C., Lwin, P.W., Liu, B. (2008-11). Exchange coupling assisted FePtC perpendicular recording media. IEEE Transactions on Magnetics 44 (11 PART 2) : 3547-3549. ScholarBank@NUS Repository.
Abstract: Magnetic hard and soft phases FePtC thin films based exchange coupling assisted (ECA) perpendicular recording media were prepared. The coercivity of the FePtC film decreased after introducing a top magnetic soft FePtC layer. The cross-sectional transmission electron microscopy image illustrated that the soft FePt grains were located both on top of the bottom FePt grains and the grain boundaries, where the hard and soft grains were separated by a C layer accumulated on the hard FePtC layer surface. The reduction of coercivity was attributed to the exchange coupling between FePt hard and soft grains. For hard and soft grains separated by the accumulated C layer, the strength of the exchange coupling depended on the carbon layer thickness. © 2008 IEEE.
Source Title: IEEE Transactions on Magnetics
ISSN: 00189464
DOI: 10.1109/TMAG.2008.2002536
Appears in Collections:Staff Publications

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