标题： 无序诱导的狄拉克节线半金属中的动态带间响应 显示英文标题

标题： Disorder induced dynamical interband response in Dirac nodal line semimetals

摘要： 为了获得系统的总响应，不能忽略无序的影响，因为它在系统的总响应中引入了一个新的贡献（即外在的）。 在研究动力学（交流）效应时，由于带间跃迁，带间响应表现出一种奇特的共振峰。 在这里，通过量子动力学方法研究了狄拉克节线半金属的动力学带间响应。 在第一阶玻恩近似（即弱无序极限）下分析了散射驱动效应，并在$2\tilde{\mu}$处显示出一个共振峰。 相反，场驱动的本征响应峰取决于质量（$\tilde{M}$）和化学势（$\tilde{\mu}$）。 结果表明，三维节线半金属的总带间响应主要由无序引起的贡献主导。 显示英文摘要

摘要： To obtain the total response of the system, the effect of disorder cannot be neglected, as it introduces a new contribution (i.e. extrinsic) in the total response of the system. In the study of dynamical (AC) effects, the interband response exhibits an exotic resonance peak due to interband transitions. Here, the dynamical interband response of Dirac nodal line semimetal is investigated by using the quantum kinetic approach. The scattering driven effect is analyzed under the first-order Born approximation (i.e., in the weak disorder limit) and reveals a resonance peak at $2\tilde{\mu}$. In contrast, the field driven intrinsic response peak depends on both the mass ($\tilde{M}$) and chemical potential ($\tilde{\mu}$). The results indicate that the total interband response of the 3D nodal line semimetals, is mainly dominated by the disorder induced contributions.