Magneto-optical recording medium having a rave earth-transition

Stock material or miscellaneous articles – All metal or with adjacent metals – Having magnetic properties – or preformed fiber orientation...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

428216, 428336, 428446, 428623, 428627, 428629, 428632, 428701, 428704, 428694RE, 428694ML, 428694TP, 428900, 428928, 427131, 427132, 369 13, G11B 572

Patent

active

055851975

ABSTRACT:
In a magneto-optical recording medium having a substrate, a recording layer having at least a rare earth-transition metal alloy film formed on the substrate, and a dielectric layer formed on the recording layer, a depth of penetration in the recording layer for an element derived from the dielectric layer is set to 70.ANG. or less from an interface between the recording layer and the dielectric layer in a depth-directional film structure analysis by an Auger electron spectroscopy. Accordingly, mixing of impurities into the recording layer can be suppressed to thereby lower the value of the required recording magnetic field.

REFERENCES:
patent: 4565734 (1986-01-01), Avai et al.
patent: 4666759 (1987-05-01), Ohkawa et al.
patent: 5019462 (1991-05-01), Steininger
Article by Kim et al from the Journal of Applied Physics, vol. 67, No. 9, May 1, 1990, pp. 5322 through 5324, "Influence on the Magnetic Properties by the Interface Reaction Between a TbCo Thin Film and a Si-Contained Protective Layer".

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Magneto-optical recording medium having a rave earth-transition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magneto-optical recording medium having a rave earth-transition , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magneto-optical recording medium having a rave earth-transition will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1990023

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.