论文标题
映射规则从淋巴结线半学到拓扑结晶绝缘子，面部为中心的立方晶格
Mapping rules from nodal line semimetal to topological crystalline insulator in face centered cubic lattice
论文作者
论文摘要
我们研究了以面部为中心的立方系统中的淋巴结线半度相位出现的拓扑结晶绝缘体阶段，当引入自旋轨道耦合（SOC）时，拓扑指数未指示。我们构建了一个有效的模型，该模型构成了两个不同的节点线相，并通过引入SOC计算了镜像Chern数字。结果，我们发现具有不同淋巴结构型的两个节点线相位映射到不同的拓扑晶体绝缘体阶段。该结果表明，关闭SOC并检查淋巴结线配置可以区分两个拓扑结晶绝缘子阶段，这些阶段尚未通过以前的方法区分。
We study what kind of topological crystalline insulator phase emerges from nodal line semimetal phases in the face-centered cubic system which is not indicated by topological indices when spin-orbit coupling (SOC) is introduced. We construct an effective model which hosts two different nodal lines phases, and calculated mirror Chern numbers in it by introducing SOC. As a result, we find that the two nodal line phases with different nodal line configurations are mapped to different topological crystalline insulator phases. This result shows that turning off SOC and checking the nodal line configuration can distinguish the two topological crystalline insulator phases, which have not been distinguished by previous methods.
