| 摘要 |
PURPOSE:To decrease the amount of recording current for magnetic recording using a miltiple magnetic head array, by forming a magnetic recording medium with an electro-resistance surface layer, a heat magnetizable ferromagnetic layer, an electro-insulated layer and a conductive layer. CONSTITUTION:A magnetic recording medium 1 includes an electro-resistance surface layer 2, a ferromagnetic substance layer of a heat magnetic material, an insulated layer 4 and a conductive base layer 5. The voltage is applid to the medium 1 from a power supply 8 via electrode rolls 6 and 7. As a result, a current 12 flows to the layer 3, and the electric field holding the layer 2 is small at the area where a multiple magnetic head array 9 has a contact. Thus the array 9 is electrically insulated from the power supply 8. As a result, the magnetic recording is assured with use of a multiple magnetic head having a small number of turns. This decreases the amount of the recording current. |
