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Article

Magneto-Transport in Flexible 3D Networks Made of Interconnected Magnetic Nanowires and Nanotubes

1
Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Place Croix du Sud 1, 1348 Louvain-la-Neuve, Belgium
2
Instituto de Investigaciones en Materiales-Unidad Morelia, Universidad Nacional Autónoma de México, Morelia 58000, Mexico
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Nanomaterials 2021, 11(1), 221; https://doi.org/10.3390/nano11010221
Received: 19 December 2020 / Revised: 7 January 2021 / Accepted: 12 January 2021 / Published: 16 January 2021
(This article belongs to the Special Issue Multifunctional Magnetic Nanowires and Nanotubes)
Electrochemical deposition of interconnected nanowires and nanotubes made of ferromagnetic metals into track-etched polycarbonate templates with crossed nanochannels has been revealed suitable for the fabrication of mechanically stable three-dimensional magnetic nanostructures with large surface area. These 3D networks embedded into flexible polymer membranes are also planar and lightweight. This fabrication technique allows for the control of the geometric characteristics and material composition of interconnected magnetic nanowire or nanotube networks, which can be used to fine-tune their magnetic and magneto-transport properties. The magnetostatic contribution to the magnetic anisotropy of crossed nanowire networks can be easily controlled using the diameter, packing density, or angle distribution characteristics. Furthermore, the fabrication of Co and Co-rich NiCo alloy crossed nanowires with textured hcp phases leads to an additional significant magnetocrystalline contribution to the magnetic anisotropy that can either compete or add to the magnetostatic contribution. The fabrication of an interconnected nanotube network has also been demonstrated, where the hollow core and the control over the tube wall thickness add another degree of freedom to control the magnetic properties and magnetization reversal mechanisms. Finally, three-dimensional networks made of interconnected multilayered nanowire with a succession of ferromagnetic and non-magnetic layers have been successfully fabricated, leading to giant magnetoresistance responses measured in the current-perpendicular-to-plane configuration. These interconnected nanowire networks have high potential as integrated, reliable, and stable magnetic field sensors; magnetic devices for memory and logic operations; or neuromorphic computing. View Full-Text
Keywords: magnetic nanostructures; 3D nanowire networks; 3D nanotube networks; anisotropic magnetoresistance; 3D nanomagnetism magnetic nanostructures; 3D nanowire networks; 3D nanotube networks; anisotropic magnetoresistance; 3D nanomagnetism
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MDPI and ACS Style

da Câmara Santa Clara Gomes, T.; Marchal, N.; Abreu Araujo, F.; Velázquez Galván, Y.; de la Torre Medina, J.; Piraux, L. Magneto-Transport in Flexible 3D Networks Made of Interconnected Magnetic Nanowires and Nanotubes. Nanomaterials 2021, 11, 221. https://doi.org/10.3390/nano11010221

AMA Style

da Câmara Santa Clara Gomes T, Marchal N, Abreu Araujo F, Velázquez Galván Y, de la Torre Medina J, Piraux L. Magneto-Transport in Flexible 3D Networks Made of Interconnected Magnetic Nanowires and Nanotubes. Nanomaterials. 2021; 11(1):221. https://doi.org/10.3390/nano11010221

Chicago/Turabian Style

da Câmara Santa Clara Gomes, Tristan, Nicolas Marchal, Flavio Abreu Araujo, Yenni Velázquez Galván, Joaquín de la Torre Medina, and Luc Piraux. 2021. "Magneto-Transport in Flexible 3D Networks Made of Interconnected Magnetic Nanowires and Nanotubes" Nanomaterials 11, no. 1: 221. https://doi.org/10.3390/nano11010221

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