Abstract
Zinc ferrite (ZnFe2O4) magnetic nanowires with different lengths (6.3, 2.3, and 1.2 μm) and different average diameters (30, 38, 48, and 58 nm) were made in anodic aluminum oxide (AAO) templates by AC pulse electrodepositing method. In order to investigate structural, morphological, magnetic and optical characteristics of the nanowires, XRD, FESEM, EDS, and FTIR analyses as well as UV–vis spectroscopy and VSM were used. Combined XRD patterns with EDS analysis revealed that zinc ferrite was formed with a cubic spinel structure. Investigation of magnetic properties revealed that by increasing the length and diameter of the nanowires, due to increasing magnetostatic interaction between the wires, the transfer of magnetic structure from a single-domain to a multi-domain state is possible, resulting in a decrease in coercivity and squareness ratio. UV–vis spectroscopy results showed that the optical band gap of zinc ferrite nanowires is about 1.94 eV, which is in the visible light range.
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