Abstract
Smooth and high aspect ratio Fe nanowire arrays with different diameters were prepared by a low cost electrodeposition method in nanoporous anodic aluminum oxide templates. The structural and magnetic properties of these nanowire arrays have been investigated. The nanowires have smooth surface and uniform diameters. Because of the very large length-to-diameter ratio ( ~ 250), the effective magnetic anisotropy is dominated by the shape anisotropy and the easy magnetization direction is oriented along the nanowire. Coercivity as a function of diameter indicates that the magnetization reversal takes place by curling mode. Whereas, the angular dependence of the coercivity doesn't follow what is predicted by the curling mechanism, which may indicate that the magnetic reversal is also influenced by magnetic interactions between nanowires. The larger length and the smaller interpore distance induced stronger magnetic coupling between Fe nanowires. This dipolar interaction also reduces the coercivity and remanance squareness of the Fe nanowires.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
