Magneto-thermoelectric effects in magnetic nanowire networks
(2026) Magnetic Nano- and Microwires : Design, Synthesis, Properties and Applications (third edition) — ISBN: [9780443365348], p. 657-678, published
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- Abstract
- Crossed arrays of ferromagnetic nanowires and nanotubes embedded in flexible polymer films combine unique mechanical, magnetic, and thermoelectric properties. The template-assisted electrodeposition technique, using polymer templates with interconnected nanopores, allows precise control over material composition, nanostructuring, and geometric parameters of the 3D nanoarchitecture. The thermoelectric performance of these ferromagnetic nanowire networks is comparable to that of their bulk counterparts, even for diameters as small as 20 nm. Such nanocomposites are promising candidates for flexible thermoelectric applications, notably for active cooling. Multilayer structures composed of alternating thin layers of copper and ferromagnetic metal maintain high thermopower while exhibiting large spin-dependent thermoelectric effects, associated with the giant magnetoresistance observed in these multilayer nanowires. Using a simple thermocouple architecture, magnetically activated thermoelectric switches have been realized, where the thermoelectric output voltage can be switched on and off by external magnetic field. This functionality offers prospects for logic computing operations powered by waste heat.
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Citations
da Câmara Santa Clara Gomes, T., Marchal, N., de la Torre Medina, J., Abreu Araujo, F., & Piraux, L. (2026). Magneto-thermoelectric effects in magnetic nanowire networks. In Manuel Vázquez (ed.) (ed.), Magnetic Nano- and Microwires : Design, Synthesis, Properties and Applications (third edition) (p. p. 657-678). Woodhead Publishing. https://doi.org/10.1016/b978-0-443-36534-8.00009-9