Chiral magnetic effect in a two-band lattice model of Weyl semimetal

Ming Che Chang, Min Fong Yang

Research output: Contribution to journalJournal Article peer-review

86 Scopus citations


Employing a two-band model of Weyl semimetal, the existence of the chiral magnetic effect (CME) is established within the linear-response theory. The crucial role played by the limiting procedure in deriving correct transport properties is clarified. Besides, in contrast to the prediction based on linearized effective models, the value of the CME coefficient in the uniform limit shows a nontrivial dependence on various model parameters. Even when these parameters are away from the region of the linearized models, such that the concept of chirality may not be appropriate, this effect still exists. This implies that the Berry curvature, rather than the chiral anomaly, provides a better understanding of this effect.

Original languageEnglish
Article number115203
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number11
StatePublished - 17 03 2015
Externally publishedYes

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Publisher Copyright:
© 2015 American Physical Society.


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