| 摘要 |
PURPOSE:To obtain the titled medium having excellent mechanical characteristic, durability, and recording characteristic by providing a 3-layered structure successively packed with a magnetic substance, a nonmagnetic substance, and a magnetic substance form the bottom part in the fine pore of an anodized film. CONSTITUTION:The anodized film 2 is formed on the surface of an Al layer 1, the part of the film 2 being in contact with the Al layer 1 is made into a semiconductive barrier 3, and many fine pores 4 are formed above the layer 3. The magnetic substance 5 is packed at the bottom part of each pore 4, the nonmagnetic substance 6 is packed thereon, further the magnetic substance 7 is packed thereon, and a 3-layered packed structure is formed in the pore 4. With such a medium, the readout voltage, recording density, over write characteristic, durability, and envelope can be improved.
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