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Proceedings Paper

Simulation of high-density thermomagnetic recording process with magnetic field modulation method
Author(s): T. Koyama; Takashi Kato; S. Tsunashima
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Paper Abstract

Thermomagnetic recording process was simulated for Tbx((Fe78Co22)100-x media by using Huth's model modified to apply the magnetic field modulation (MFM) recording method. In the case of X = 17.6 (TM-rich) medium recorded with 1 μm laser spot and single pulse field, the recorded mark length becomes much longer than designed one when it becomes shorter than 100 nm. In the case of X = 21.7 (RE-rich) medium, the recorded mark lengths is not so much longer compared to those of X = 17.6 and 19.4, but it becomes difficult to record marks shorter than 40 nm due to the collapse of domains. The influence of magnetic parameters on the recording characteristics is also discussed.

Paper Details

Date Published: 9 April 2003
PDF: 4 pages
Proc. SPIE 5060, Sixth International Symposium on Optical Storage (ISOS 2002), (9 April 2003); doi: 10.1117/12.510246
Show Author Affiliations
T. Koyama, Nagoya Univ. (Japan)
Takashi Kato, Nagoya Univ. (Japan)
S. Tsunashima, Nagoya Univ. (Japan)


Published in SPIE Proceedings Vol. 5060:
Sixth International Symposium on Optical Storage (ISOS 2002)

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