Title :
Analysis of side writing asymmetry
Author :
Hozoi, A. ; Groenland, J.P.J. ; Albertini, J.B. ; Lodder, J.C.
Author_Institution :
Univ. of Twente, Enschede, Netherlands
Abstract :
The side writing asymmetry of a recording head was investigated using an overwrite configuration that enhances the edge effects. The track profiles of the overwrite patterns were measured for analyzing the side writing performance of the head. Magnetic force microscope (MFM) images of the overwrite patterns were studied using fast Fourier transforms (FFT), and they confirmed the profiling results. We measured weak edge effects at good pole alignment. The experiments were performed with metal evaporated (ME) and metal particle (MP) tapes having magnetic layers between 50 and 300 nm.
Keywords :
fast Fourier transforms; magnetic force microscopy; magnetic heads; magnetic recording; magnetic tapes; vacuum deposited coatings; 50 to 300 nm; edge effects; fast Fourier transforms; good pole alignment; magnetic force microscope images; magnetic layers; metal evaporated tapes; metal particle tapes; overwrite configuration; overwrite patterns; recording head; side writing asymmetry; side writing performance; track profiles; weak edge effects; Disk recording; Fast Fourier transforms; Magnetic analysis; Magnetic force microscopy; Magnetic forces; Magnetic heads; Magnetic recording; Material storage; Prototypes; Writing;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.816295
