Abstract
Head field calculation of a single-pole type head was conducted to determine the effect of magnetic interaction between head and medium. We found that head field was influenced strongly not only by the magnetic properties of the backlayer but by those of the recording layer. We therefore clarified the relationship between the head field and the parameters of head and medium by our calculations, taking the magnetic properties of the recording layer into consideration. Moreover, a comparison of the head field between a single-pole type head and a ring type head showed that the former could obtain high density recording even with a relatively thick recording layer.
