| 摘要 |
PURPOSE:To reduce the writing current to accelerate the writing speed as well as to decrease the average waiting time, by providing a light transmitting part to a slider along with a condenser lens set in opposition to the light transmitting part and then setting a writing coil at a slider part at a position where no overlap occurs in an optical path of the light transmitting part. CONSTITUTION:A slider 2 contains a light transmitting part, and a thin film magnetic head part 10 is provided to the slider 2 at a position where no overlap occurs in the optical path of the light transmitting part. When access is given to the surface of a magnetic recording medium 4 of a head 3, the slider 2 shifts to a recording track and floats above the surface 5 of the medium at a slight distance to slide there by an air current. A light beam is irradiated to the surface 5 of a magnetic layer 14 via the light transmitting part of the slider 2. Then the writing is carried out by means of a writing air core coil 10 to a magnetic layer region where the coercive force is reduced. The size of the coil 10 can be reduced since the coil is infinitely brought close to the surface of the layer 14. Furthermore, the current value is also reduced as compared with the conventional level. This process accelerates the writing speed and also decreases the average waiting time for rewriting. |
