Cart (Loading....) | Create Account
Close category search window
 

Micromagnetic study of track edge and medium orientation effects in high areal density recording

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Plumer, M. ; Seagate Technol., Bloomington, MN, USA ; van Ek, Jan

A micromagnetic recording model is used to examine the effects of media-grain anisotropy distributions on the quality of recorded tracks at high areal density. Write head fields derived from the finite element method, which accounts for pole-tip and corner saturation, are applied to a Landau-Lifschitz-Gilbert model of thin-film longitudinal media. The read-back signal from the recorded transitions is determined through a micromagnetic model of a GMR spin-valve device. Medium magnetization profiles, percolation, track-edge effects, and read-back voltages are reported for 10 Gb/in2 applications. As the anisotropy axes become more oriented along the down-track direction, both the sharpness of the transitions as well as the extent of erase bands improve dramatically. The casts of both saturated and unsaturated writer pole tips are examined. The effect of an out-of-plane component of the medium anisotropy axes is also examined. Even with a moderately wide Gaussian distribution, the effect on transition quality is minimal. Erase bands increase to some extent but the read-back signal is little affected

Published in:

Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 5 )

Date of Publication:

Sep 2000

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.