Structure and Magnetic Properties of the Co-Ni Alloy Nanowires Prepared by AC Electrodeposition

Abstract:

Ordered Co-Ni nanowires have been fabricated by alternating current (AC) electrodeposition method using anodic porous alumina as a template. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) test results reveal that the samples are polycrystalline with uniform diameters around 50 nm and lengths up to several micrometers. X-ray diffraction (XRD) pattern indicate the crystalline structure change from fcc to hcp as the Co composition increasing. Magnetic measurements show that the nanowires have high magnetic anisotropy with their easy axis parallel to the nanowire arrays. The coercivity (H_c) and squareness (M_r/M_s) are found to increase with the increase of ferromagnetic Co component.

• Periodical: Advanced Materials Research (Volume 787)
• Pages: 372-375
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.787.372
• Online since: September 2013
• Authors: X. Wen, Y. Zhang, X.X. Zhang, G.H. Yue, D.L. Peng
• Keywords: Co-Ni Nanowires, Magnetic Property, Structure

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