By Topic

CoFe/Ir/CoFe artificial antiferromagnetic sandwich as a hard magnetic layer in hard-soft GMR sensors

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

3 Author(s)
S. Colis ; Inst. de Phys. et Chimie des Mater., Strasbourg, France ; A. Dinia ; C. Ulhaq-Bouillet

We report on the magnetic and transport properties of CoFe3 nm/Ir0.5 nm/CoFe3 nm and CoFe1.5 nm /Ir0.5 nm/CoFe3 nm sandwiches, grown by ion beam sputtering. The sandwich with identical CoFe thicknesses presents a small rigidity and no plateau around zero field. For the same coupling strength, this rigidity and the plateau are strongly improved for the sandwich with asymmetrical CoFe thicknesses. In both cases, when the thicker layer is on the top or on the bottom of the AAF, coercive fields Hc of 600 Oe are obtained. However, the GMR plateau is only slightly improved for asymmetric sandwiches, probably due to lateral coupling fluctuations. Roughness analysis and TEM observations have been made in order to confirm the last hypothesis

Published in:

IEEE Transactions on Magnetics  (Volume:37 ,  Issue: 4 )