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AssigneeHitachi, Ltd.
InventorsTetsuya Nishida, Motoyasu Terao, Yasushi Miyauchi, Shinkichi Horigome
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An information recording thin film capable of changing an atomic configuration upon exposure to a recording beam, formed on a substrate directly or through a protective layer composed of at least one of inorganic materials and organic materials, an average composition in the film thickness direction of the information-recording thin film being represented by the following general formula; A.sub.X B.sub.Y C.sub.Z Ge.sub..alpha. Te.sub..beta. wherein X, Y, Z, .alpha. and .beta. are in ranges of 0.ltoreq.X<30, 0.ltoreq.Y.ltoreq.30, 0.ltoreq.Z.ltoreq.65, 0.ltoreq..alpha..ltoreq.65, 10.ltoreq.Z+.alpha..ltoreq.65 and 35.ltoreq..beta..ltoreq.60 in atomic percentage, C is at least one element of Sb, Sn, As, Pb, Bi, Zn, Cd, Si, Al, Ga and In; B is at least one element of Tl, halogen elements and alkali metal elements, and A is at least one of other elements than those represented by B and C, and than Ge and Te.
An information-recording thin film capable of changing an atomic configuration upon exposure to a recording beam, formed on a substrate directly or through a protective layer composed of at least one of inorganic materials and organic materials, an average composition in the film thickness direction of the information-recording thin film being represented by the following general formula:
An information-recording thin film capable of changing an atomic configuration upon exposure to a recording beam, formed on a substrate directly or through a protective layer composed of at least one of inorganic materials and organic materials, an average composition in the film thickness direction of the information-recording thin film being represented by the following general formula:
An information-recording thin film which comprises a recording film capable of changing an atomic configuration upon exposure to a recording beam, formed on a substrate directly or through a protective layer composed of at least one of inorganic materials and organic materials and a reflecting layer provided over the recording film through an intermediate layer composed of at least one of inorganic materials and organic materials, an average composition in the film thickness direction of the recording film being represented by the following general formula:
A method for recording information which comprises a step of preparing an information-recording thin film capable of changing an atomic configuration upon exposure of a recording beam, formed on a substrate directly or through a protective layer composed of at least one of inorganic materials and organic materials, an average composition in the film thickness direction of the information-recording thin film being represented by the following general formula:
A method for recording information which comprises a step of preparing an information-recording thin film capable of changing an atomic configuration upon exposure to a recording beam, formed on a substrate directly or through a protective layer composed of at least one of inorganic materials and organic materials, an average composition in the film thickness direction of the information-recording thin film being represented by the following general formula:
A method for recording information which comprises a step of preparing an information-recording thin film capable of changing an atomic configuration upon exposure to a recording beam, formed on a substrate directly or through a protective layer composed of at least one of inorganic materials and organic materials, an average composition in the film thickness direction of the information-recording thin film being represented by the following general formula:
Dependencies are inferred from the claim text.