Read performance of a single-pole head with trapezoidal cross section for perpendicular recording

The read performance of a single-pole head with trapezoidal cross section for perpendicular recording is investigated theoretically. With the aid of the reciprocity theorem for magnetic recording the expressions for the response to a single magnetization reversal and to harmonic magnetization on a tape with a soft magnetic backlayer are obtained. Numerical results are presented for different bevellings of the cross section.