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On the Onsager-Casimir reciprocal relations in a tilted Weyl semimetal

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arxiv 2208.00436 v1 pith:GYC4W5E6 submitted 2022-07-31 cond-mat.mes-hall cond-mat.other

classification cond-mat.mes-hallcond-mat.other
keywords reciprocalrelationseffecthallonsager-casimirsemimetalsymmetrytilted
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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 Co$_3$Sn$_2$S$_2$ 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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