Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1997-06-17

1999-06-01

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of inorganic material

428694TS, 428694TB, 428694TP, 428694TM, 428900, 427128, G11B 566

Patent

active

059087110

ABSTRACT:
In a magnetic recording medium having a magnetic thin film formed on a nonmagnetic base film by vacuum evaporation, a noise can be reduced and hence a satisfactory error rate for the digital recording can be secured. A magnetic recording medium according to the present invention includes a nonmagnetic base film, and a magnetic layer formed on the nonmagnetic base film by oblique incident evaporation. A mean particle size a of a column grown on the nonmagnetic base film is set within the range of 10 nm.ltoreq.a.ltoreq.50 nm. A value .sigma./a is set within the range of .sigma./a.ltoreq.0.4 where .sigma. is a dispersion value of a particle-size distribution of the column.

REFERENCES:
patent: 4688130 (1987-08-01), Nakanouchi et al.
patent: 4726988 (1988-02-01), Oka
patent: 5525398 (1996-06-01), Takai

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