| 摘要 |
PURPOSE:To offer a photomagnetic recording medium with sufficiently excellent acid resistance and less secular change by adding a chemical compound different from a conventional single element, e.g., oxide, nitride, carbide, fluoride, sulfide, or phosphide. CONSTITUTION:Silicon wafer, glass, PMMA (transparent acryl), PC (polycarbonate) or bakelite is used as a base and an alloy film made of an rare earth element (R), K, one or more kinds of Co, Fe, Ni or other elements (K) or compound or the likehaving a thickness of 50Angstrom - several mu is formed on the base. The R element and the T element are as known conventionally as 0.1<=X<=0.4 in a PXT1-X, and the K is a compound of the mixture of >=1 kind of said oxides of the phosphide. |
