On the Onsager-Casimir reciprocal relations in a tilted Weyl semimetal |
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Affiliation: | 1.State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, Peking University, Beijing 100871, China;2.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;3.Collaborative Innovation Center of Quantum Matter, Beijing 100871, China |
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Abstract: | The Onsager-Casimir reciprocal relations are a fundamental symmetry of nonequilibrium statistical systems. Here we study an unusual chirality-dependent Hall effect in a tilted Weyl semimetal Co3Sn2S2 with broken time-reversal symmetry. It is confirmed that the reciprocal relations are satisfied. Since two Berry curvature effects, an anomalous velocity and a chiral chemical potential, contribute to the observed Hall effect, the reciprocal relations suggest their intriguing connection. |
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Keywords: | Onsager-Casimir relations tilted Weyl semimetal chirality-dependent Hall effect |
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