Magneto-Transport in Flexible 3D Networks Made of Interconnected Magnetic Nanowires and Nanotubes
| Autor: | Luc Piraux, Yenni G. Velázquez Galván, Flavio Abreu Araujo, Tristan da Câmara Santa Clara Gomes, Joaquin De La Torre Medina, Nicolas Marchal |
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| Přispěvatelé: | UCL - SST/IMCN - Institute of Condensed Matter and Nanosciences |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Nanotube
Materials science Fabrication Magnetoresistance General Chemical Engineering Nanowire Physics::Optics Giant magnetoresistance 02 engineering and technology 010402 general chemistry 01 natural sciences Article 3D nanomagnetism lcsh:Chemistry Condensed Matter::Materials Science magnetic nanostructures General Materials Science 3D nanowire networks business.industry 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 0104 chemical sciences Magnetic field Magnetic anisotropy Ferromagnetism lcsh:QD1-999 Optoelectronics anisotropic magnetoresistance 0210 nano-technology business 3D nanotube networks Magnetic nanostructures |
| Zdroj: | Nanomaterials, Vol 11, Iss 221, p 221 (2021) Nanomaterials, Vol. 11, no.1, p. 221 (2021) Nanomaterials Volume 11 Issue 1 |
| ISSN: | 2079-4991 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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