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arXiv · 2208.00434

Antisymmetric Seebeck effect in a tilted Weyl semimetal

Bingyan Jiang·Jiaji Zhao·Jiangyuan Qian·Shen Zhang·XiaoBin Qiang·Lujunyu Wang·Ran Bi·Juewen Fan·Hai-Zhou Lu·Enke Liu·Xiaosong Wu
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Abstract

Tilting the Weyl cone breaks the Lorentz invariance and enriches the Weyl physics. Here, we report the observation of a magnetic-field-antisymmetric Seebeck effect in a tilted Weyl semimetal, Co$_3$Sn$_2$S$_2$. Moreover, it is found that the Seebeck effect and the Nernst effect are antisymmetric in both the in-plane magnetic field and the magnetization. We attribute these exotic effects to the one-dimensional chiral anomaly and phase space correction due to the Berry curvature. The observation is further reproduced by a theoretical calculation, taking into account the orbital magnetization.

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Bingyan Jiang, Jiaji Zhao, Jiangyuan Qian, Shen Zhang, XiaoBin Qiang, Lujunyu Wang, Ran Bi, Juewen Fan, Hai-Zhou Lu, Enke Liu, Xiaosong Wu. 2022-07-31. Antisymmetric Seebeck effect in a tilted Weyl semimetal. https://doi.org/10.1103/physrevlett.129.056601

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