Field measurements near high-density statically recorded transitions in a thin-film medium

A controllable static recording technique which allows transitions to be spaced as closely as 0.25 micron has been used to record isolated and doublet transitions on a thin-film medium. The perpendicular demagnetizing fields from these transitions have been measured with the high-resolution Hall-probe measurement system, and the results were compared to theoretically predicted fields using both the Dynamic Iterative Model and superposition of two isolated arctangent transitions. Both of these theories adequately describe the measured results for this thin-film medium.