Spin configuration in isolated FeCoCu nanowires modulated in diameter
Iglesias-Freire O, Bran C, Berganza E, Minguez-Bacho I, Magen C, Vazquez M, Asenjo A (2015)
Publication Status: Published
Publication Type: Journal article
Publication year: 2015
Journal
Publisher: IOP PUBLISHING LTD
Book Volume: 26
Article Number: ARTN 395702
Journal Issue: 39
DOI: 10.1088/0957-4484/26/39/395702
Abstract
Cylindrical Fe28Co67Cu5 nanowires modulated in diameter between 22 and 35 nm are synthesized by electroplating into the nanopores of alumina membranes. High-sensitivity MFM imaging (with a detection noise of 1 mu N m(-1)) reveals the presence of single-domain structures in remanence with strong contrast at the ends of the nanowires, as well as at the transition regions where the diameter is modulated. Micromagnetic simulations suggest that curling of the magnetization takes place at these transition sites, extending over 10-20 nm and giving rise to stray fields measurable with our MFM. An additional weaker contrast is imaged, which is interpreted to arise from inhomogeneities in the nanowire diameter.
Authors with CRIS profile
Involved external institutions
Spanish National Research Council / Consejo Superior de Investigaciones Científicas (CSIC)
Spain (ES)
Universidad de Zaragoza
Spain (ES)
Spain (ES)
Universidad de Zaragoza
Spain (ES)
How to cite
APA:
Iglesias-Freire, O., Bran, C., Berganza, E., Minguez-Bacho, I., Magen, C., Vazquez, M., & Asenjo, A. (2015). Spin configuration in isolated FeCoCu nanowires modulated in diameter. Nanotechnology, 26(39). https://dx.doi.org/10.1088/0957-4484/26/39/395702
MLA:
Iglesias-Freire, Oscar, et al. "Spin configuration in isolated FeCoCu nanowires modulated in diameter." Nanotechnology 26.39 (2015).
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