Making flexible spin caloritronic devices with interconnected nanowire networks
(2019) Science advances — Vol. 5, n° 3, p. eaav2782 (2019)
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- Spin caloritronics has recently emerged from the combination of spintronics and thermoelectricity. Here, we show that flexible,macroscopic spin caloritronic devices based on large-area interconnectedmagnetic nanowire networks can be used to enable controlled Peltier cooling of macroscopic electronic components with an external magnetic field. We experimentally demonstrate that three-dimensional CoNi/Cu multilayered nanowire networks exhibit an extremely high, magnetically modulated thermoelectric power factor up to 7.5 mW/K2m and large spin-dependent Seebeck and Peltier coefficients of −11.5 mV/K and −3.45 mV at room temperature, respectively. Our investigation reveals the possibility of performing efficient magnetic control of heat flux for thermal management of electronic devices and constitutes a simple and cost-effective pathway for fabrication of large-scale flexible and shapeable thermoelectric coolers exploiting the spin degree of freedom.
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da Câmara Santa Clara Gomes, T., Abreu Araujo, F., & Piraux, L. (2019). Making flexible spin caloritronic devices with interconnected nanowire networks. Science advances, 5(3), eaav2782. https://doi.org/10.1126/sciadv.aav2782 (Original work published 2019)