论文标题
在无序的狄拉克和Weyl材料中增强了异常的Nernst效应
Enhanced anomalous Nernst effect in disordered Dirac and Weyl materials
论文作者
论文摘要
我们使用半经典方法分析了狄拉克和Weyl半法的热电响应，重点是由于偏斜的散落和侧跳而引起的外部贡献。我们的结果适用于铁磁性狄拉克材料中的线性响应nernst效果，例如fe $ _3 $ sn $ _2 $，weyl semimetal co $ _3 $ _3 $ sn $ _2 $ _2 $ s $ _2 $，以及与Trigonal Warping在HBN上在HBN上进行单层石墨烯的二阶响应。我们的分析表明，外部贡献可能是异常响应的重要组成部分，并用于解释增强的热电反应。
We analyze the thermoelectric response of Dirac and Weyl semimetals using the semiclassical approach, focusing on the extrinsic contributions due to skew-scattering and side jump. Our results apply to linear response Nernst effect in ferromagnetic Dirac materials such as Fe$_3$Sn$_2$, Weyl semimetal Co$_3$Sn$_2$S$_2$ and to second order response of monolayer graphene on hBN with trigonal warping. Our analysis indicates that the extrinsic contributions can be a significant component of anomalous Nernst response and used to explain an enhanced thermoelectric response.
