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Nanoscale characterisation and magnetic properties of Co81Cu19/Cu multilayer nanowires

Zhang, J, Ma, H, Zhang, S, Zhang, H, Deng, X, Lan, Q, Xue, D, Bai, F, Mellors, NJ and Peng, Y 2014, 'Nanoscale characterisation and magnetic properties of Co81Cu19/Cu multilayer nanowires' , J. Mater. Chem. C, 3 (1) , pp. 85-93.

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Bamboo-like CoCu/Cu multilayer nanowires have been successfully fabricated into anodic aluminium oxide templates using an electrodeposition method, and their chemistry and crystal structure have been characterised at the nanoscale. Energy-dispersive X-ray analysis indicated that the chemical composition of the regular periodic CoCu/Cu nanowires was Co81Cu19/Cu. Diffraction analysis revealed that Cu layers and Co-rich layers exhibited polycrystalline fcc structures. A twin relationship of Cu layer {111} planes stacking on Co81Cu19 layer {111} planes was observed at the lattice-resolution level. The magnetic properties analysed by experimental and theoretical simulations showed that there was a transition from a curling rotation mode to coherent rotation mode in our Co81Cu19/Cu multilayer nanowires when the angle between external field and nanowire length axis increased from 0° to 90°. This study highlights the basic morphological, chemical, structural information and magnetic reversal mechanism of CoCu/Cu nanowires, which are critical for the applications of multilayer nanowires in nanoscale sensors and electronics.

Item Type: Article
Themes: Energy
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: J. Mater. Chem. C
Publisher: Royal Society of Chemistry
Refereed: Yes
ISSN: 2050-7526
Funders: Funder not known
Depositing User: NJ Mellors
Date Deposited: 29 Apr 2015 11:08
Last Modified: 05 Apr 2016 18:19

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