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
TL;DR
This paper reports the discovery of an antisymmetric Seebeck effect in a tilted Weyl semimetal, linked to chiral anomaly and Berry curvature, supported by experimental observation and theoretical modeling.
Contribution
It presents the first observation of a magnetic-field-antisymmetric Seebeck effect in a tilted Weyl semimetal, revealing new thermoelectric phenomena related to Weyl physics.
Findings
Observation of antisymmetric Seebeck effect in Co$_3$Sn$_2$S$_2$
Seebeck and Nernst effects antisymmetric in magnetic field and magnetization
Theoretical reproduction including Berry curvature and orbital magnetization
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, CoSnS. 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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.