Micromagnetic study of readout process in magneto-optical multilayers

Rachid Sbiaa, Takao Suzuki

Research output: Contribution to journalArticle

Abstract

The areal storage density of magneto-optical (MO) recording can be increased with the magnetically induced super-resolution (MSR) readout technique. In the present work, the effect of laser energy, disk velocity, and cooling time on the magnetic reversal processes in the MSR technique is discussed. The magnetization distribution and the temperature profile within MO multilayer media are investigated based on a micromagnetic model using a heat conduction theory. The magnetization of the readout layer, initially with in-plane magnetic anisotropy, can be switched perpendicularly to the film plane in a small temperature region. This magnetic reorientation depends on the strength of the exchange coupling between different layers. The correlation between this exchange coupling and dynamic parameters is discussed.

Original languageEnglish
Pages (from-to)6896-6898
Number of pages3
JournalJournal of Applied Physics
Volume87
Issue number9 III
Publication statusPublished - May 1 2000

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readout
magnetization
conductive heat transfer
temperature profiles
retraining
recording
cooling
anisotropy
lasers
temperature
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Micromagnetic study of readout process in magneto-optical multilayers. / Sbiaa, Rachid; Suzuki, Takao.

In: Journal of Applied Physics, Vol. 87, No. 9 III, 01.05.2000, p. 6896-6898.

Research output: Contribution to journalArticle

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