By Topic

Electrodeposited Co-Fe and Co-Fe-Ni alloy films for magnetic recording write heads

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

3 Author(s)
Xiaomin Liu ; Dept. of Metall. & Mater. Eng., Alabama Univ., Tuscaloosa, AL, USA ; Evans, Paul ; Zangari, G.

The electrodeposition of Co-Fe and Co-Fe-Ni alloys from electrolytes without any organic additives is explored. For Co-Fe alloys, the effect of the ratio of Co and Fe concentrations in the electrolyte on the composition and magnetic properties of the deposits is examined. A maximum saturation magnetization of 20.4 kG is obtained, however the films showed high coercivity (20 to 30 Oe). The addition of Ni to the solution leads to much improved soft magnetic properties. A Fe-rich alloy, Co19Fe52Ni29 showed a saturation magnetization of 20.5 kG, a coercivity of about 1 Oe and saturation magnetostriction λs, about 10-6. Best soft magnetic properties are obtained when BCC and FCC phases are seen to coexist. The films show good stability of magnetic properties upon easy axis annealing up to 200°C. Magnetic force microscopy showed the domain pattern to be a ripple structure for films with positive magnetostriction, changing to a stripe domain structure with increasing Ni content. This corresponds to a change in sign of the magnetostriction

Published in:

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