Recorded magnetizations and magnetic fields in media derived by computer simulation

The parameters of magnetic media dependences of the half pulse width, PW/sub 50/, and output voltage of isolated pulse, E/sub 0/, were investigated using computer simulation. It was found that the squareness in the x direction (Sx) dependences of PW/sub 50/ and E/sub 0/ are different from the saturation magnetization dependences of PW/sub 50/ and E/sub 0/ and that PW/sub 50/ hardly changes with Sx for high S* (PW/sub 50/ varies as Sx/sup 0.04/), although it is proportional to Sx/sup 0.48/ for low S*. The corresponding magnetization and the total magnetic field are also investigated for high Sx and low Sx media in three steps. These are the reversed write current, removed head, and reproducing process steps. It is confirmed that transition regions are formed mainly during the reversed write step.<
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