Thermal bit writing simulations in magneto-optic recording media

Author

Greaves, S.J. ; Muraoka, H. ; Sugita, Y. ; Nakamura, Y.

Author_Institution

Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

3859

Lastpage

3861

Abstract

A micromagnetic simulation based on the Landau-Lifshitz-Gilbert equation includes random field terms to represent thermal effects. By recalculating the temperature of each cell in the simulation at each time step the effects of localised heating by a laser and of heat conduction can be included in the calculations. This allows a simulation of magneto-optic recording processes to be carried out. Single bit nucleation in zero field was simulated, as were written tracks

Keywords

magnetisation; magneto-optical recording; magnetocaloric effects; Landau-Lifshitz-Gilbert equation; heat conduction; localised heating; magneto-optic recording media; magneto-optic recording processes; micromagnetic simulation; random field terms; single bit nucleation; thermal bit writing simulations; thermal effects; Electronic noses; Equations; Feature extraction; Gas detectors; Heating; Instruments; Magnetic anisotropy; Magnetooptic effects; Magnetooptic recording; Optical pulses; Pattern analysis; Saturation magnetization; Sensor arrays; Sensor phenomena and characterization; Signal processing; Substrates; Temperature; Writing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800688

Filename

800688