1. Large anomalous Nernst effect in the ferromagnetic Fe3Si polycrystal
- Author
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Wang, Yangming, Minami, Susumu, Sakai, Akito, Chen, Taishi, Feng, Zili, Nishio-Hamane, Daisuke, and Nakatsuji, Satoru
- Subjects
Condensed Matter - Materials Science - Abstract
The high-throughput calculation predicts that the Fe-based cubic ferromagnet Fe$_3$Si may exhibit a large anomalous Nernst effect (ANE). Here, we report our experimental observation of the large Nernst coefficient $S_{yx}\sim$2 $\mu$V/K and the transverse thermoelectric coefficient $-\alpha_{yx}$ $\sim$ 3 Am$^{-1}$K$^{-1}$ for Fe$_3$Si polycrystal at room temperature. The large $-\alpha_{yx}$ indicates that the large ANE originates from the intrinsic Berry curvature mechanism. The high Curie temperature of 840 K and the most abundant raw elements of Fe and Si make Fe$_3$Si a competitive candidate for Nernst thermoelectric generations., Comment: Accepted to Proceedings of the 15th Asia Pacific Physics Conference (APPC 15), Springer Nature
- Published
- 2024