AI 中文总结
研究狄拉克半金属紧束缚模型在磁场和电场下的电导率，通过强磁场极限和小温度极限计算，考虑杂质散射耗散，结果证实磁导率来源是手征磁效应。
AI 中文摘要
我们考虑了同时存在磁场和电场的狄拉克半金属典型紧束缚模型。电导率显示出对磁场的依赖性。我们在强磁场极限下计算这种依赖性，此时给定模型可由一维SSH模型有效描述，因为垂直于磁场平面的动力学简化为最低朗道能级的动力学。考虑小温度极限，我们考虑了杂质散射引起的耗散，并明确计算了相应的耗散率。所得结果证实该系统中磁导率的来源是手征磁效应。
英文摘要
We consider the typical tight - binding model of Dirac semimetal in the presence of both magnetic and electric fields. The electric conductivity reveals dependence on magnetic field. We calculate this dependence in the limit of strong magnetic field, when the given model is described effectively by the one - dimensional SSH model because the dynamics in the plane orthogonal to magnetic field is reduced to that of the lowest Landau level (LLL). Considering the small temperature limit we take into account dissipation due to scattering on impurities. The corresponding dissipation rate is calculated explicitly. The obtained results confirm that the source of the magnetoconductivity in this system is chiral magnetic effect.
CommentsLatex, 28 pages
