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Electrodeposition and characterization of NiCr alloy nanowires

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Abstract

The NiCr alloy nanowires were electrodeposited from an acidic sulphate baths into nanoporous anodized aluminume oxide (AAO). This template was fabricated by two-step anodization. The NiCr alloy nanowires were synthesized for Cr content up to 0.32% without any significant improvement in magnetic properties. Above this threshold, Cr clusters were formed and magnetic properties were decreased significantly. For Cr content of higher than 2.1% the wires were formed so short and incomplete which were like the nanoparticles. X-ray diffraction patterns revealed changing in the FCC crystal structure of Ni nanowires to an amorphous phase by increasing the Cr content. This leads to a significant decline in the magnetic properties like coercivity and squareness. The effect of thermal annealing on the magnetic properties of the NiCr alloy nanowires, showed that the squareness and the coercivity were improved by enhancing the amount of the temperature to 300 °C and were decreased by enhancing that to 500 °C.

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Authors and Affiliations

  1. Sama Technical and Vocational Training College, Islamic Azad University, Sanandaj Branch, Sanandaj, Iran

    K. Maleki

  2. Department of Physics, University of Kurdistan, Sanandaj, Iran

    Z. Alemipour

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  1. K. Maleki
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  2. Z. Alemipour
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Correspondence to K. Maleki.

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Maleki, K., Alemipour, Z. Electrodeposition and characterization of NiCr alloy nanowires. Appl. Phys. A 123, 397 (2017). https://doi.org/10.1007/s00339-017-1009-z

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