论文标题
pb $ _ {2} $ pd中表面状态的终止依赖性
Termination dependence of the surface states in Pb$_{2}$Pd
论文作者
论文摘要
系统的拓扑特性导致表面状态的出现，可以在角度分辨光发射光谱（ARPES）测量中实验观察到。最近，报告了pb $ _ {2} $ pd的拓扑特性。在本文中，我们讨论了表面终止对实现的表面状态的作用。我们讨论了（001）和（110）表面表面状态的终止依赖性。我们证明了PD终止（001）表面允许实现狄拉克锥状表面状态。在此情况下（110），我们观察到良好的表面状态，在费米水平的附近，具有抛物线样分散关系。
Topological properties of systems lead to the emergence of surface states which can be observed experimentally within the angle-resolved photoemission spectroscopy (ARPES) measurements. Recently, the topological properties of Pb$_{2}$Pd were reported. In this paper, we discuss the role of the surface termination on the realized surface states. We discuss the termination dependence of the surface state for (001) and (110) surface. We demonstrate that the Pd terminated (001) surface allow realization of the Dirac cone-like surface state. In the case (110) we observe well visible surface states with parabolic-like dispersion relation in close vicinity of the Fermi level.
