By Topic

Magneto-optic Write-Head Characterization Using a Garnet Imaging Film

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
$33 $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

1 Author(s)
Juergen Heidmann ; Integral Solutions Int., Santa Clara, CA, USA

A magneto-optic transducer comprising of a magnetic garnet film with inplane magnetization and a reflective layer is used to generate an image that reveals information on the write field of perpendicular write heads. By evaluating the local image contrast a measure that correlates with head efficiency and over-write is derived. The contrast distribution provides dimensional information and is sensitive to magnetic defects at the air baring surface and deficiencies of the overall magnetic writer performance. The method is non-destructive and when integrated into an automated test system can be applied on the row-bar, slider or head gimbal assembly level.

Published in:

IEEE Transactions on Magnetics  (Volume:45 ,  Issue: 10 )