Abstract
Nonlinear transition shift (NLTS) in perpendicular media is studied theoretically. From an analytic expression for demagnetizing field in perpendicular media, the difference between transition shift and NLTS is shown. A finite-element model is used to study the influence of a high permeability write head on the demagnetizing field from the adjacent transition. The results show a negligible effect, unlike longitudinal recording. Using a write model, the relationship between NLTS and write field gradient of perpendicular media shows that NLTS approaches a constant as the gradient increases. We also demonstrate that the measurement of the undifferentiated signal (the direct readback signal from perpendicular media) using the harmonic elimination technique produces misleading results.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
