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Thermal stability of written bits in high density magneto-optical recording media

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3 Author(s)
Mochida, M. ; Toyota Technol. Inst., Nagoya, Japan ; Birukawa, M. ; Suzuki, T.

Masurements of magnetic domains in TbFeCo films currently used as magneto-optical recording media indicate a shrinkage in domain size under accelerated conditions. A criterion factor (Ea/kT) for thermal stability is found to be about 40 for domains with a diameter of about 0.8 μm, where Ea is an activation energy estimated on the basis of Arrenhius plot of the shrinkage with time. For high density recording applications, a higher wall pinning field is necessary

Published in:

Magnetics, IEEE Transactions on  (Volume:37 ,  Issue: 4 )

Date of Publication:

Jul 2001

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