Magneto-optical recording medium

Details Magneto-optical recording medium Magneto-optical recording medium

1993-03-01

1995-02-21

Resan, Stevan A.

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Web or sheet containing structurally defined element or...

Physical dimension specified

369 13, 428611, 428635, 428655, 428694ML, 428694SC, 428694MM, 428900, 428694SG, 257 15, 257 28, 365122, B32B 516, G11B 566

Patent

active

053914317

ABSTRACT:
A magneto-optical recording medium comprises a base film having a certain crystal plane oriented in parallel to a substrate and a recording film formed on the base film. The recording film is composed of plural pairs of Mn alloy group magnetic thin film layer having a C-axis-oriented crystalline magnetic anisotropy and a nonmagnetic thin film layer having an interatomic spacing approximate to that of the base film, alternately laminated each other, so that the Mn alloy group magnetic film having a C-axis-oriented crystalline magnetic anisotropy is epitaxially grown on the substrate at a low temperature through the base film with high thermal stability and great magneto-optical effect.

REFERENCES:
patent: 4690861 (1987-09-01), Nakamura et al.
patent: 5231294 (1993-07-01), Takeuchi et al.
Nakazawa et al., J. Magn. Soc. Jpn, "Studies on the Thermal Stability of Pd/Co Multilayered Films Using XRD and TEM Observations" vol. 15, Suppl. No. S1 (1991) pp. 255-258.
Wang et al., Journal de Physique, "Structural and Magnetic Properties in MnBiAlSi and MnBiSbSi Films" vol. 49 (12), pp. 1725-1726 (1988).
Katsui, J. Appl. Phys., vol. 47, No. 8 (1976) "Magnetic and Magneto-optic Properties of Ferromagnetic MnCuBi Thin Films" pp. 3609-3611.
Under et al. J. Appl. Phys., vol. 43, No. 6, (1972) "Structural, Magnetic, and Magneto-Optic Properties of Ti-Substituted MnBi Films" pp. 2875-2879.
Yusu et al., JJAP, Series 6, Proc. Int. Symp. on Optical Memory, (1991) "Kerr Enhancement by Layer Modulation in Co/Pt Multilayers" pp. 27-30.
Mojejko et al., Journal of Crystal Growth, 36, (1976) "Structural Investigations of Thin Antimony Films" pp. 61-70.

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