Title :
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
fDate :
9/1/1999 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
