By Topic

Mechanism of Magnetization Reversal in Arrays of Multilayered Nanowires

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)

The effect of the shape anisotropy and dipolar interactions between NiFe magnetic layers on the magnetization reversal of NiFe/Cu multilayered nanowire arrays electrodeposited into the nanopores of anodic aluminum oxide (AAO) templates with diameters of 35 nm has been studied. The magnetization reversal mechanism has been investigated from the magnetic hysteresis loops of NiFe/Cu nanowires, for various angles θ between the applied field and the nanowires axis. The magnetization reversal strongly depends on the variation of the aspect ratio (thickness/diameter) between NiFe and Cu layers. Based on the Aharoni's model and the Stoner-Wohlfarth model, we calculated the coercive field (Hc) of multilayered nanowires, considering also the intra-nanowires interaction. The calculated results are in good agreement with the experimental ones even for thin NiFe layers, when the calculated results without considering the magnetostatic coupling between the adjacent ferromagnetic layers are unable to follow the experimental results. Additionally, the angular variation of the normalized remanence (Mr(θ)/Ms) for NiFe/Cu nanowires with various NiFe layers thickness was studied. The experimental Hc and Mr(θ)/Ms values were derived from the hysteresis loops.

Published in:

Magnetics, IEEE Transactions on  (Volume:47 ,  Issue: 11 )