Magnetic overwrite system in which 2 bits can be stored per magnetic domain.
Abstract
Over Write Capable Magnetooptical Recording Medium, Recording Method and Apparatus Using the Same. The recording medium in which the direction of an initial field Hini. is the same as that of a bias field Hb (Classes 1, 2, and 8 in Table 1), and which satisfies predetermined formulas can allow an over-write operation if a jointing field Hjoint. is used which continuously changes from the initial field Hini. to the bias field Hb.