Magneto-optical recording medium and manufacturing method thereo

Details Magneto-optical recording medium and manufacturing method thereo Magneto-optical recording medium and manufacturing method thereo

1994-03-08

1996-03-12

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of inorganic material

428694SC, 428694RE, 428694DE, 428694MM, 428694EC, 428900, 369 13, G11B 566, G11B 1100

Patent

active

054984858

ABSTRACT:
A magneto-optical recording medium has a recording layer including two magnetic layers. The magneto-optical recording medium satisfies a condition of .vertline.A.sub.1.K.sub.1 -A.sub.2.K.sub.2 .vertline..ltoreq.0.18 (erg.sup.2 /cm.sup.4) wherein A.sub.1, K.sub.1, A.sub.2, and K.sub.2 respectively represent an exchange constant of a first magnetic layer, a perpendicular magnetic anisotropy of the first magnetic layer, an exchange constant of a second magnetic layer, and a perpendicular magnetic anisotropy of the second magnetic layer. First and Second magnetic layers are made of TbFeCo.

REFERENCES:
Kaneko et al; Jap. J. Appl. Phys., vol. 28; Supp. 28-3, pp. 27-31, 1989.
Iida et al; Jap. J. Appl. Phys., vol. 28; Supp. 28-3, pp. 367-370, 1989.
Hatwar et al., J. Appl. Phys. vol. 70, No. 10; Nov. 1991, pp. 6439-6441.
Kaneko et al "The Interface Wall Structure of Magnetic Triple-Layer Film for Overwriting by Light Intensity Modulation" Jap. Jour. Appl. Phys., vol. 28, No. 3, 1989, pp. 27-31.
"Control of Exchange Coupling for Direct Overwrite Media Using Pd Metal Interlayer", Hatwar et al., Journal of Applied Physics, vol. 70, No. 10, Nov. 1991, pp. 6439-6441.
"The Interface Wall Structure of Magnetic Triple-Layer Film for Overwriting by Light Intensity Modulation", Kaneko et al., Japanese Journal of Applied Physics, vol. 28, No. 3, 1989, pp. 27-31.
Masahiko Kaneko et al, Japanese Journal of Applied Physics, vol. 28, Supp. 28-3, pp. 27-31, 1989.
Haruhisa Iida et al, Japanese Journal of Applied Physics, vol. 28, Supp. 28-3, pp. 367-370, 1989.

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