论文标题
通过角度分辨光发射光谱法在PTPB4中进行大的RashBA分裂的证据
Evidence for large Rashba splitting in PtPb4 from Angle-Resolved Photoemission Spectroscopy
论文作者
论文摘要
我们使用激光分辨光发射光谱（ARPES）和密度功能理论（DFT）计算研究了PTPB $ _ {4} $的电子结构。该材料与PTSN $ _ {4} $密切相关，该$ _ {4} $表现出异国情调属性，例如Dirac节点弧。 PTPB $ _ {4} $的费米表面（FS）由布里渊区中心（BZ）中央的两个电子口袋组成，该区域边界周围的几个孔口袋组成。我们的ARPES数据显示，与DFT计算一致的$γ$点的RASHBA分裂。 RashBA分裂的存在可能会引起这种潜在的旋转应用程序材料。
We studied the electronic structure of PtPb$_{4}$ using laser angle-resolved photoemission spectroscopy(ARPES) and density functional theory(DFT) calculations. This material is closely related to PtSn$_{4}$, which exhibits exotic topological properties such as Dirac node arcs. Fermi surface(FS) of PtPb$_{4}$ consists of two electron pockets at the center of the Brillouin zone(BZ) and several hole pockets around the zone boundaries. Our ARPES data reveals significant Rashba splitting at the $Γ$ point in agreement with DFT calculations. The presence of Rashba splitting may render this material of potential interest for spintronic applications.
