Analysis of written transition curvature in perpendicular magnetic recording for spin-stand testing

Transition curvature is a significant factor in limiting the densities that can be achieved using perpendicular recording. In this report, the transition curvature of a written track is extracted solely from measurements on a spin-stand. Both signals waveforms and background media noise waveforms were captured. By numerical post-processing, the transition shape can be determined by referencing it against the media noise.