| 摘要 |
PURPOSE:To reduce track pitches, and to increase the recording density of a magnetic recording medium by forming a recording layer of a ferrimagnetic substance, a compensation temperature of which is approximately room temperature. CONSTITUTION:An AlN film 4 as a transparent dielectric thin-film is formed onto the top face of a transparent support substrate 5, a recording layer 3 composed of a ferrimagnetic substance is formed onto the top face of the AlN film 4, and an AlN film 2 as the transparent dielectric thin-film is shaped onto the top face of the recording layer 3. The ferrimagnetic substance used as the recording layer 3 has a Curie temperature and a compensation temperature, and saturation magnetization reaches approximately zero at the compensation temperature. That is, when the recording layer 3, in which the compensation temperature is set at room temperature, is used, no leakage flux is generated from a section to which a signal magnetic field is applied and recorded, when the temperature of the section is held at room temperature even in the section. Accordingly, track pitches are reduced, and the recording density of a magnetic recording medium is increased.
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