Modeling the effect of head saturation in high density tape recording

Abstract

The effect of head saturation on the signal spectrum in high-density tape recording has been investigated using a simple model for the recording process and a finite-difference model for the head. Phase relationships in the recording process are incorporated by utilizing the angularly dependent switching behavior of a two-particle simplified system. The recording process under saturation is shown to depend on the achievable deep gap field since the head field shape changes only slightly. Scanning-Kerr-microscope assessment of saturation is shown to differ from that of a micro-loop. >