The half hysteresis loop of SL media and CGC with continuous thickness, 5 nm, are compared.
The result give good agreement when CGC media has average Hex = 3.33 kOe while SL media has Hex = 4.00 kOe.
The coercivity field of both media approximates to 13 kOe.
The SL media is this easier to reverse and writability of SL media is improved.