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  • Title: Modulating the Spin Seebeck Effect in Co2FeAl Heusler Alloy for Sensor Applications.
    Author: Lopes MV, Souza EC, Santos JG, Medeiros de Araujo J, Lima L, Oliveira AB, Bohn F, Correa MA.
    Journal: Sensors (Basel); 2020 Mar 03; 20(5):. PubMed ID: 32138388.
    Abstract:
    The thermoelectric conversion technique has been explored in a broad range of heat-flow sensors. In this context, the Spin Seebeck Effect emerges as an attractive candidate for biosensor applications, not only for the sensibility improvement but also for the power-saving electronic devices development. Here, we investigate the Longitudinal Spin Seebeck Effect in films with a Co 2 FeAl/W bilayer structure grown onto GaAs (100) substrate, systems having induced uniaxial magnetic anisotropy combined with cubic magnetic anisotropy. From numerical calculations, we address the magnetic behavior and thermoelectric response of the films. By comparing experiment and theory, we explore the possibility of modulating a thermoelectric effect by magnetic anisotropy. We show that the thermoelectric voltage curves may be modulated by the association of magnetic anisotropy induction and experimental parameters employed in the LSSE experiment.
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