论文标题
稳定的Mn \ emph {x} $ _ {2} $ \ emph {b} $ _ {2} $ \ emph {t} $ \ emph {
Intrinsic ferromagnetic axion states and a single pair of Weyl fermions in the stable-state Mn\emph{X}$_{2}$\emph{B}$_{2}$\emph{T}$_{6}$-family materials
论文作者
论文摘要
固有的铁磁（FM）轴突绝缘子和韦尔半法（WSM）只有一对Weyl点吸引了密集的关注，但到目前为止，在实际材料中仍然难以捉摸。在这里，我们提出了一类新的Mn \ emph {x} $ _ {2} $ \ emph {b} $ _ {2} $ \ emph {t} $ _ {6} $ _ {6} $ - b（\ emph {x} = ge，sn或pb;该系统的稳定结构形式。我们发现Mn \ emph {x} $ _ {2} $ \ emph {b} $ _ {2} $ \ emph {t} $ _ {6} $ - b家族不仅具有内在的FM Axion Insulators mnge MNGE $ _ {2} $ _ {2} $ _ $ _ $ _ $ _} $ _ {2} $ _ {2} $ _ {2} mnsn $ _ {2} $ bi $ $ _ {2} $ te $ _ {6} $ - b和mnpb $ _ {2} $ _ {2} $ _ {2} $ _ {2} $ _ {2} $ _ {6} $ - 只有一对Weyl点。因此，Mn \ emph {x} $ _ {2} $ \ emph {b} $ _ {2} $ \ emph {t} $ _ {6} $ - b家族可以提供一个理想的平台，以探索探索外来拓扑磁性磁性效应，并与固有的属性相关。
The intrinsic ferromagnetic (FM) axion insulators and Weyl semimetals (WSMs) with only single pair of Weyl points have drawn intensive attention but so far remain rare and elusive in real materials. Here, we propose a new class of Mn\emph{X}$_{2}$\emph{B}$_{2}$\emph{T}$_{6}$-B (\emph{X}=Ge, Sn, or Pb; \emph{B}=Sb or Bi; \emph{T}=Se or Te) family that is the stable structural form of this system. We find that the Mn\emph{X}$_{2}$\emph{B}$_{2}$\emph{T}$_{6}$-B family has not only the intrinsic FM axion insulators MnGe$_{2}$Bi$_{2}$Te$_{6}$-B, MnSn$_{2}$Bi$_{2}$Te$_{6}$-B, and MnPb$_{2}$Bi$_{2}$Te$_{6}$-B, but also the intrinsic WSM MnSn$_{2}$Sb$_{2}$Te$_{6}$-B with only a single pair of Weyl points. Thus, the Mn\emph{X}$_{2}$\emph{B}$_{2}$\emph{T}$_{6}$-B family can provide an ideal platform to explore the exotic topological magnetoelectric effect and the intrinsic properties related to Weyl points.
