Core–Shell GaAs-Fe Nanowire Arrays: Fabrication Using Electrochemical Etching and Deposition and Study of Their Magnetic Properties
Monaico E, Morari V, Ursaki VV, Nielsch K, Tiginyanu IM (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 12
Article Number: 1506
Journal Issue: 9
DOI: 10.3390/nano12091506
Abstract
The preparation of GaAs nanowire templates with the cost-effective electrochemical etching of (001) and (111)B GaAs substrates in a 1M HNO3 electrolyte is reported. The electrochemical etching resulted in the obtaining of GaAs nanowires with both perpendicular and parallel orientations with respect to the wafer surface. Core–shell GaAs-Fe nanowire arrays have been prepared by galvanostatic Fe deposition into these templates. The fabricated arrays have been investigated by means of scanning electron microscopy (SEM) and vibrating sample magnetometry (VSM). The magnetic properties of the polycrystalline Fe nanotubes constituting the shells of the cylindrical structures, such as the saturation and remanence moment, squareness ratio, and coercivity, were analyzed in relation to previously reported data on ferromagnetic nanowires and nanotubes.
Involved external institutions
Technical University of Moldova
Moldova, Republic of (MD)
Ghitu Institute of Electronic Engineering and Nanotechnologies
Moldova, Republic of (MD)
Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden
Germany (DE)
Moldova, Republic of (MD)
Ghitu Institute of Electronic Engineering and Nanotechnologies
Moldova, Republic of (MD)
Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden
Germany (DE)
How to cite
APA:
Monaico, E., Morari, V., Ursaki, V.V., Nielsch, K., & Tiginyanu, I.M. (2022). Core–Shell GaAs-Fe Nanowire Arrays: Fabrication Using Electrochemical Etching and Deposition and Study of Their Magnetic Properties. Nanomaterials, 12(9). https://doi.org/10.3390/nano12091506
MLA:
Monaico, Eduard, et al. "Core–Shell GaAs-Fe Nanowire Arrays: Fabrication Using Electrochemical Etching and Deposition and Study of Their Magnetic Properties." Nanomaterials 12.9 (2022).
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