About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
IEEE Transactions on Magnetics
Paper
Track edge phenomena in thin film longttudinal media
Abstract
Isolated transitions, recorded with a thin-film inductive head on thin-film isotropic media and read with a magnetoresistive sensor can exhibit waveform distortions, characterized by a shift of the base line between readback pulses. The amount of the base-line shift (BLS) increases with increasing write current, decreasing trackwidth and decreasing medium coercivity. The source of the BLS is shown experimentally to be localized at track edges. A model, based on the creation of magnetic dipoles along each edge of a data track is proposed to explain the observed waveform deformation. Quantitative measurements of the BLS as well as the dipole-width estimation are presented. © 1989 IEEE