By Topic

Enhanced Exchange Anisotropy by Ultra-Thin Co _{x} Fe _{100 - x}(x> 80) Layer Insertion at the Interface of {\rm L1}_{2} -Ordered Mn _{3} Ir/Co _{65} Fe _{35} Bilayers

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

8 Author(s)
K. Komagaki ; Adv. Head Technol. Dept., Fujitsu Ltd., Nagano ; M. Tsunoda ; H. Takahashi ; K. Noma
more authors

We have investigated the exchange anisotropy in L12-ordered Mn 3Ir/Co 65Fe 35 bilayers with inserting ultra-thin CoxFe100 - x(x > 65) layer at the interface between L12-Mn3 Ir and Co65 Fe35 layer. The unidirectional anisotropy constant, JK, was enhanced from 0.93 erg/cm2 to 1.2erg/cm2 at the range from 85 to 98 at.% of Co composition in CoxFe100 - x insertion layer. The crystal structure of the ultra-thin Co90 Fe10 insertion layer was transformed to bcc structure following the bcc structured Co65 Fe35 layer during thermal annealing. These results suggest that the enhancement of exchange anisotropy with ultra-thin Co xFe 100 - x(x > 80) insertion layer is attributed to the Co-rich bcc phase formation in the insertion layer.

Published in:

IEEE Transactions on Magnetics  (Volume:44 ,  Issue: 11 )