| 摘要 |
PURPOSE:To extend the life of the title recording medium, by forming a recording film into such a structure that amorphous In fine particles and an org. substance are dispersed in a matrix containing amorphous In2O3 as a main constitutional component. CONSTITUTION:A substrate 10 is, for example, a PC substrate and a recording film 12 constituted by dispersing amorphous In fine particles 16 and an org. substance 18 in an amorphous In2O3 matrix 14 is formed thereon. In this case, the metal particles dispersed in amorphous In2O3 are amorphous fine particles and, since a crystal grain boundary is not present, the advance of deterioration and corrosion reaction due to grain boundary diffusion shown in a polycrystalline substance is markedly suppressed. Since a dispersed substance other than the amorphous In fine particles is the org. substance, the recording layer is inert to moisture and corrosion due to redox reaction shown in a metal is not advanced. |
