Longitudinal Spin Seebeck Effect thermopiles based on flexible Co-rich amorphous ribbons/Pt thin-film heterostructures

Longitudinal Spin Seebeck Effect thermopiles based on flexible Co-rich amorphous ribbons/Pt thin-film heterostructures

Thermoelectric phenomena, such as the Anomalous Nernst and Longitudinal Spin Seebeck Effects, are promising for sensor applications in the area of renewable energy. In the case of flexible electronic materials, the request is even larger because they can be integrated into devices having complex sha...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Vol. 23; no. 18; pp. 1 - 12
Main Authors: Correa, Marcio A., Svalov, Andrey V., Ferreira, Armando José Barros, Gamino, Matheus, Silva, Edimilson F. da, Bohn, Felipe, Vaz, Filipe, de Oliveira, Danniel F., Kurlyandskaya, Galina V.
Format: Journal Article
Language:English
Published: Basel Multidisciplinary Digital Publishing Institute (MDPI) 10-09-2023
MDPI AG
MDPI
Subjects:
Annealing
Anomalous Nernst effect
Efficiency
Flexible magnetic materials
Glass substrates
Magnetic fields
Magnetic properties
Magnetic sensors
Oxidation
Sensors
Spintronics
Thermoelectric conversion
Thermoelectricity
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Summary:Thermoelectric phenomena, such as the Anomalous Nernst and Longitudinal Spin Seebeck Effects, are promising for sensor applications in the area of renewable energy. In the case of flexible electronic materials, the request is even larger because they can be integrated into devices having complex shape surfaces. Here, we reveal that Pt promotes an enhancement of the thermoelectric response in Co-rich ribbon/Pt heterostructures due to the spin-to-charge conversion. Moreover, we demonstrated that the employment of the thermopiles configuration in this system increases the induced thermoelectric current, a fact related to the considerable decrease in the electric resistance of the system. By comparing present findings with the literature, we were able to design a flexible thermopile based on LSSE without the lithography process. Additionally, the thermoelectric voltage found in the studied flexible heterostructures is comparable to the ones verified for rigid systems. This research was funded by different sources. M.A.C. thanks CAPES (8887.573100/2020-00) and CNPq. A.F. thanks the FCT (CTTI-31/18-C.F. (2) junior researcher contract). A.V.S. and G.V.K. were supported in the frame of the Priority-2030 Program of Ural Federal University.
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ISSN:1424-8220
1424-8220
DOI:10.3390/s23187781