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Fabrication of Flyable Perpendicular Discrete Track Media

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8 Author(s)
Moneck, M.T. ; Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA ; Zhu, Jian-Gang ; Xiaodong Che ; Yawshing Tang
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Discrete track media offers many potential recording advantages over conventional continuous media in hard disk drives. In this study, we present a novel fabrication process for discrete track perpendicular magnetic media via electron beam lithography, ion milling, and the use of a protective Al sacrificial layer. Physical characterization of the media confirms the process is able to produce patterned tracks with no damage to the media. Spin stand analysis verifies the disks are flyable and capable of recording sharp transitions without any degradation in the magnetic signal

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Magnetics, IEEE Transactions on  (Volume:43 ,  Issue: 6 )