Recording layer for optical data recording medium, optical data recording medium, and sputtering target
AssigneeKobe Steel, Ltd.
InventorYuki Tauchi
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Abstract
A recording layer for an optical data recording medium according to one embodiment of the present invention makes it possible to record an information signal by irradiation with laser beam. The recording layer for an optical data recording medium comprises metal oxides including a Mn oxide, a W oxide, and a Sn oxide. The atomic ratio of Mn with respect to the total number of atoms of metal elements constituting the metal oxides is 3-40 atm %.
Claims10
A recording layer for an optical data recording medium, the recording layer being capable of recording an information signal by being irradiated with laser beam, the recording layer comprising metal oxides comprising Mn oxide, W oxide, and Sn oxide,
- wherein a ratio of Mn content to a total of metal elements constituting the metal oxides is 3 atm % to 40 atm %, and
- a ratio of Sn content to the total of the metal elements constituting the metal oxides is 5 atm % or more.
Dependencies are inferred from the claim text.