By Topic

A new design for an ultra-high density magnetic recording head using a GMR sensor in the CPP mode

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

2 Author(s)
R. Rottmayer ; Read-Rite Corp., Milpitas, CA, USA ; Jian-Gang Zhu

In this paper, we present a new head design consisting of a GMR multilayer read element within the write head gap. The GMR read element operates in the CPP mode and is biased by an exchange coupled soft film acting like a permanent magnet. This design has many advantages over the conventional MR and spin-valve bead designs. The most significant advantage is that the read back voltage amplitude is virtually independent of track width. The cross-track profile is well defined. The read and write gaps are coincident and the device is relatively simple and is potentially suited to high yield manufacture. From the micromagnetic analysis, it is estimated that with this head design, recording density as high as 25 Gbits/in2 can be achieved

Published in:

IEEE Transactions on Magnetics  (Volume:31 ,  Issue: 6 )