Patent ID: 6214482
Filing Date: 2001-04-10
Classification: G11B,Y10S

Abstract:
A dielectric layer for use in magneto-optic storage media consisting of a binary oxide compound glass of SiO.sub.2 --MO.sub.2, SiO.sub.2 --M.sub.2 O.sub.3 or SiO.sub.2 --M.sub.2 O.sub.5 without organic substances therein, wherein M is selected from the group consisting of Ti, Zr, Al, Nb, Y, Sn, In, Ta and Sb, and the relative percentages of SiO.sub.2 and the M containing component adjusted to obtain an index of refraction in the range between 1.5 and 2.4 and the relative percentage of SiO.sub.2 is sufficient for causing said compound glass to be in an amorphous state.