FERROMAGNETIC CORE-SHELL COAXIAL NANOSTRUCTURES ON GALLIUM ARSENIDE SUBSTRATES

Monaico EV, Morari V, Kutuzau M, Ursaki VV, Nielsch K, Tiginyanu IM (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Romanian Journal of Physics Institute of Atomic Physics

Book Volume: 67

Article Number: 611

Journal Issue: 9-10

Abstract

Fe and NiFe coatings have been electrochemically deposited on GaAs nanowires arrays prepared by electrochemical etching of (001) and (111)B GaAs substrates in a 1M HNO3 electrolyte. It was found that deposition in galvanostatic mode is preferable for Fe coatings, while it is not suitable for NiFe alloys. Potentiostatic deposition was applied for Ni0.65Fe0.35 coatings. The fabricated ferromagnetic coaxial core-shell structures have been investigated by means of scanning electron microscopy (SEM) and vibrating sample magnetometry (VSM). A comparative analysis of magnetic properties of the produced structures in terms of saturation and remanence moment, squareness ratio, and coercivity, was performed between planar and coaxial structures, between Fe and NiFe coatings, as well as between different orientations of the magnetic field with respect to the nanowires axis.

Involved external institutions

Technical University of Moldova MD Moldova, Republic of (MD) Ghitu Institute of Electronic Engineering and Nanotechnologies MD Moldova, Republic of (MD) Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden DE Germany (DE)

How to cite

APA:

Monaico, E.V., Morari, V., Kutuzau, M., Ursaki, V.V., Nielsch, K., & Tiginyanu, I.M. (2022). FERROMAGNETIC CORE-SHELL COAXIAL NANOSTRUCTURES ON GALLIUM ARSENIDE SUBSTRATES. Romanian Journal of Physics, 67(9-10).

MLA:

Monaico, E. V., et al. "FERROMAGNETIC CORE-SHELL COAXIAL NANOSTRUCTURES ON GALLIUM ARSENIDE SUBSTRATES." Romanian Journal of Physics 67.9-10 (2022).

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