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Open AccessArticle

Fabrication of CoFe2O4 Nanowire Using a Double-Pass Porous Alumina Template with a Large Range of Pore Diameters

1
Laboratory for Nanoelectronics and NanoDevices, Department of Electronics Science and Technology, Hangzhou Dianzi University, Hangzhou 310018, China
2
Magnetism Kev Laboratory of Zhejiang Province, China Jiliang University, Hangzhou 310018, China
*
Authors to whom correspondence should be addressed.
Crystals 2020, 10(4), 331; https://doi.org/10.3390/cryst10040331
Received: 20 March 2020 / Revised: 13 April 2020 / Accepted: 22 April 2020 / Published: 23 April 2020
(This article belongs to the Special Issue Magnetism in Low Dimensional Structures)
In this work, CoFe2O4 nanowire was fabricated by using a self-designed double-pass porous alumina template. The double-pass porous alumina template was prepared by a two-step oxidation method using a mixed acid (phosphoric acid and oxalic acid) electrolyte and polymethyl methacrylate (PMMA) filler. The combustion of aluminum foil at a high voltage has been effectively resolved by using this mixed acid electrolyte. Additionally, the range of pore diameters has been obviously increased to 230–400 nm by using PMMA as the filler, which can prevent contact between the pore and solution when removing the barrier layer. Subsequently, CoFe2O4 ferrite nanowire arrays were successfully fabricated into the double-pass porous alumina template by an electrochemical deposition method, and show an anisotropic feature of magnetic properties. View Full-Text
Keywords: magnetic nanowires; magnetic anisotropy; CoFe2O4; AAO template magnetic nanowires; magnetic anisotropy; CoFe2O4; AAO template
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Chen, W.; Zheng, H.; Hu, D.; Wu, Q.; Zheng, P.; Zheng, L.; Zhang, Y. Fabrication of CoFe2O4 Nanowire Using a Double-Pass Porous Alumina Template with a Large Range of Pore Diameters. Crystals 2020, 10, 331.

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