TY - JOUR
T1 - Anomalous Nernst effect in Fe-Si alloy films
AU - Hamada, Yuki
AU - Kurokawa, Yuichiro
AU - Yamauchi, Tomoki
AU - Hanamoto, Hiroki
AU - Yuasa, Hiromi
N1 - Funding Information:
This study was supported by the Center for Spintronics Research Network of Japan, Oosaka University, JSPS KAKENHI (No. JP19K04471), NEXCO Affiliates Support Fund for Highway Disaster Prevention Measures, and Thermal and Electric Energy Technology, Inc., Foundation.
Publisher Copyright:
© 2021 Author(s).
PY - 2021/10/11
Y1 - 2021/10/11
N2 - We experimentally investigated the anomalous Nernst effect (ANE) in an Fe3Si film, whose ANE was predicted to be large, based on the topological property and the Berry curvature, and systematically compared it with other compositions of iron-silicide, viz., Fe2Si, FeSi, and FeSi2 films. Although both the ferromagnetic Fe3Si and Fe2Si films showed an ANE voltage, the highest ANE coefficient SANE=1.0 μV K−1 was obtained for Fe3Si, which is larger than that for Fe. We also measured the Seebeck and anomalous Hall effects to estimate the transverse thermoelectric conductivity, suggesting that the contribution of was dominant in the Fe3Si ANE enhancement.
AB - We experimentally investigated the anomalous Nernst effect (ANE) in an Fe3Si film, whose ANE was predicted to be large, based on the topological property and the Berry curvature, and systematically compared it with other compositions of iron-silicide, viz., Fe2Si, FeSi, and FeSi2 films. Although both the ferromagnetic Fe3Si and Fe2Si films showed an ANE voltage, the highest ANE coefficient SANE=1.0 μV K−1 was obtained for Fe3Si, which is larger than that for Fe. We also measured the Seebeck and anomalous Hall effects to estimate the transverse thermoelectric conductivity, suggesting that the contribution of was dominant in the Fe3Si ANE enhancement.
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U2 - 10.1063/5.0062637
DO - 10.1063/5.0062637
M3 - Article
AN - SCOPUS:85117050340
SN - 0003-6951
VL - 119
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 15
M1 - 152404
ER -