| 摘要 |
<p>An optical information recording medium for recording, retrieving and erasing mark length-modulated amorphous marks, which comprises a substrate (1), and a lower protective layer (2), a phase-change recording layer (3), an upper protective layer (4) and a reflective layer (5) having a thickness of from 40 to 300 nm and a volume resistivity of from 20 to 150 n OMEGA -m, formed in this sequence on the substrate, wherein the phase-change recording layer (3) is a thin film of an alloy of Mw(SbzTe1-z)1-w, where 0</=w</=0.2, 0.5</=z</=0.9, and M is at least one member selected from the group consisting of In, Ga, Zn, Sn, Si, Cu, Au, Ag, Pd, Pt, Pb, Cr, Co, O, N, S, Se, Ta, Nb, V, Bi, Zr, Ti, Mn, Mo, Rh and rare earth elements and wherein the reflective layer (5) is made of an alloy of Al, inclusive of pure Al, having an impurity content of not more than 2 atomic % or an alloy of Au, inclusive of pure Au, having an impurity content of not more than 5 atomic %. <IMAGE></p> |
| 申请人 |
MITSUBISHI CHEMICAL CORPORATION |
发明人 |
OHNO, TAKASHI;KOMATSU, MASAO;KUBO, MASAE;MIZUNO, MASAAKI;NOBUKUNI, NATSUKO;HORIE, MICHIKAZU;KUNITOMO, HARUO |
