Magneto-optical characteristics of magnetic nanowire arrays in anodic aluminium oxide templates

Peng, Y; Shen, T; Ashworth, B; Zhao, XG; Faunce, CA; Liu, YW

Abstract

Nanocomposite films consisting of regularly ordered iron nanowires embedded in anodic aluminum oxide templates have been fabricated and their magneto-optical properties studied by determining the four Stokes parameters of the transmitted laser beam (λ=670 nm), originally linearly polarized and at normal incidence to the film surfaces. The results of the nanowire arrays are found to be considerably different from that of bulk iron. While an increase in diameter of the nanowire leads to a substantial increase in the values of the Faraday rotation angles per unit length at a fixed value of the magnetic fields, they are substantially less than that of bulk iron, indicating that the effective media theory may not be directly applicable.

Citation

Peng, Y., Shen, T., Ashworth, B., Zhao, X., Faunce, C., & Liu, Y. (2003). Magneto-optical characteristics of magnetic nanowire arrays in anodic aluminium oxide templates. Applied Physics Letters, 83(2), 362-364. https://doi.org/10.1063/1.1590427

• Journal Article Type: Article
• Publication Date: Jul 14, 2003
• Deposit Date: Aug 23, 2007
• Publicly Available Date: Aug 23, 2007
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Publisher: AIP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 83
• Issue: 2
• Pages: 362-364
• DOI: https://doi.org/10.1063/1.1590427
• Keywords: iron, ferromagnetic materials, alumina, nanowires, arrays, interface magnetism, light polarisation, Faraday effect
• Publisher URL: http://dx.doi.org/10.1063/1.1590427
• Related Public URLs: http://www.aip.org/; http://apl.aip.org/apl/top.jsp