Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent
1995-05-18
1998-01-06
Font, Frank G.
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
360 59, 360114, 365122, 428694ML, G11B 1100, G11B 502, G11C 1306
Patent
active
057062595
ABSTRACT:
In a magneto-optical recording medium for super resolution reproduction, a recording layer having a Curie temperature of 300.degree. C. or higher is used. An inhibition force for inhibiting movement of a domain wall in the recording layer is enhanced, while the magnetization is sufficiently increased such that a contraction force, which decreases a surface area of the domain wall, can be decreased. Thus, recording domains become stable during recording and erasing. Further, cross erasing characteristics can be improved, while maintaining previously used recording and erasing powers. The inhibition force becomes larger than the contraction force, even if the Curie temperature is low, when the recording layer is made of a first magnetic material for forming recording domains which have a compensation temperature between 0.degree. and 200.degree. C., or when the compensation temperature of the recording layer is between 0.degree. and 200.degree. C.
REFERENCES:
patent: 5164926 (1992-11-01), Matsumoto
patent: 5168482 (1992-12-01), Aratani et al.
patent: 5210724 (1993-05-01), Kobayashi
patent: 5218581 (1993-06-01), Ohta et al.
patent: 5224080 (1993-06-01), Otsuki
patent: 5241520 (1993-08-01), Ohta et al.
patent: 5258237 (1993-11-01), Nakaki et al.
patent: 5265073 (1993-11-01), Osato
patent: 5278810 (1994-01-01), Takahashi et al.
patent: 5309427 (1994-05-01), Matsumoto
patent: 5488604 (1996-01-01), Negishi
"Read Out Mechanism of Magnetically Induced Super Resolution", M. Ohta et al., (Proceedings of Magneto Optical Recording International Symposium 1991, J.Magn.Soc.Jpn., vol. 15, Supp. No. S1 ('91), pp. 319-322.
"Large-Capacity Magneto-Optical Disk System Using Magnetically Induced Super Resolution", S. Yoshimura et al., (IEEE Transactions on Consumer Elect., vol. 38, No. 3, Aug. 1992, pp. 660-664.
"High-Density Magneto-Optical Disk System Using Magnetically Induced Super Resolution", S. Yoshimura et al., International Symposium Optical Memory, pp. 43-44.
"Multi-Layered Magneto-Optical Disks for Magnetically Induced Super Resolution", M. Kaneko et al., International Symposium Optical Memory, pp. 35-36.
Birukawa Masahiro
Fukamachi Yuichi
Eisenberg Jason D. Vierra
Font Frank G.
Matsushita Electric - Industrial Co., Ltd.
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