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

Ming Che Chang, Min Fong Yang

研究成果: 雜誌貢獻期刊論文同行評審

65 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
文章編號115203
期刊Physical Review B - Condensed Matter and Materials Physics
91
發行號11
DOIs
出版狀態已發佈 - 2015 三月 17

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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