| 摘要 |
PURPOSE:To allow recording at a high density even with the medium having high coercive force and high saturation magnetic flux density by increasing the temp. in an information recording part and the peripheral part thereof during recording at the time of subjecting the magnetic recording medium having the high coercive force to recording, erasing and reproducing by using a magnetic head. CONSTITUTION:A recording film 2 consisting of Tb19Fe72Co18 is formed to 0.2mum thickness on an Al substrate 2 to constitute the magnetic recording medium having the high coercive force and high saturation density of 200Oe coercive force, 400emu/cc saturation magnetization and 350 deg.C Curie temp. Information is recorded with a gap length as 0.2mum by using a composite head 6 of a rotary floating type added with a medium heating mechanism at the time of recording the information in such recording film 2. An optical fiber 3 and a condenser 4 from a laser light source are provided to the heating mechanism and the surface of the medium 2 is irradiated with the laser light 5 via said fiber, etc. The high-density recording is enabled in this way and since the gap is made large as well, the generation of a head crash is obviated and two-fold larger output and >=6dB erasing ratio are obtd. |
