Optical information recording medium

Details Optical information recording medium Optical information recording medium

1991-08-12

1992-03-10

Levy, Stuart S.

Dynamic information storage or retrieval

Storage medium structure

Specified material

369284, 369286, 3692752, 3461351, 430945, 430495, G11B 724

Patent

active

050954792

ABSTRACT:
An optical information recording medium is composed of a substrate and a recording layer, formed thereon, which recording layer causes the reversible phase change by the application of an electromagnetic wave thereto, and comprises a phase-changeable type alloy with the composition of (XYZ.sub.2).sub.1-x M.sub.x, wherein X is an element of the group Ib, Y is an element of the group Va, Z is an element of the group VIa, M is an element selected from the group consisting of Sb, Bi, In, Al and Ga, and 0<x<1.

REFERENCES:
patent: 3530441 (1970-09-01), Ovshinsky

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