Read/write simulation of keepered medium·thin film head system

Read/write simulation of thermally stabilized magnetic recording media with a thin film head

“…The B-H curves for the head core material and the SUL in KM were given by using an empirical formula in Ref. [4], where the magnetic flux density Bs=2.2 T and the relative permeability m=1500 were used for the former, and Bs=1.5 T and m=100 for the latter. In addition, the intra-ferromagnetic and the inter-antiferromagnetic interactions in the AFC medium are introduced by a mean field approximation as exchange fields of H ex ¼ A 0 M x ðA 0 > 0Þ and ÀAM x (A>0), respectively [5].…”