Mark shapes in hybrid recording

We describe the theoretical and experimental investigation of mark shapes in thermally assisted or hybrid recording. The effect of alignment was studied by recording marks on perpendicular TbFeCo media using a commercial recording head and 840 nm laser. We found that mark shapes are primarily contro...

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Bibliographic Details
Published in:Applied physics letters 2002-03, Vol.80 (10), p.1835-1837
Main Authors: Herget, P., Rausch, T., Shiela, A. C., Stancil, D. D., Schlesinger, T. E., Zhu, J.-G., Bain, J. A.
Format: Article
Language:English
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Summary:We describe the theoretical and experimental investigation of mark shapes in thermally assisted or hybrid recording. The effect of alignment was studied by recording marks on perpendicular TbFeCo media using a commercial recording head and 840 nm laser. We found that mark shapes are primarily controlled through laser/head alignment, and that maximally straight transitions are obtained by placing the laser spot on the leading pole tip near the gap. Simulations of the recording process confirm the experimental findings and are used in conjunction with static write contours to show how transitions form.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1454230