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

Improved flat Ni-Fe-film elements obtained by diffusion of an electroplated nonmagnetic layer

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

1 Author(s)
Littwin, B. ; Siemens AG, Components Division, Munich, Germany.

The storage properties of flat thin Ni-Fe films can be improved by diffusing a nonmagnetic metal into them. Usually this metal is deposited on the Ni-Fe film in a vacuum chamber. By this well-known technique one can also electroplate the non-magnetic overlay. Several metals, e.g., Zn, Cd, Cu, Pb, Sn, Bi, and In have been tried. Tin gave the best reproducibility. The dispersion remains almost unchanged up to aH_{c}/H_{k}ratio of 1, so that very good bit current margins are achieved. To avoid demagnetization effects, which could mask the film qualities, large spots were investigated. It was found that the creep threshold is independent of the film thickness (350-1000 Å). An explanation for this desirable behavior can be found if one assumes that the nonmagnetic metal fills up and enlarges easy-diffusion paths in the film and thus creates obstacles for a creeping wall. Despite the low diffusion temperature for Sn, 50-100°C, the long-time stability of the magnetic parameters is good, and it is possible to get uniform magnetic parameters on large memory planes.

Published in:

Magnetics, IEEE Transactions on  (Volume:5 ,  Issue: 3 )

Date of Publication:

Sep 1969

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.