Bi $_2$ Te $_3$表面电子波的STM成像：拓扑保护表面态和六角弯曲效应
STM imaging of electronic waves on the surface of Bi$_2$Te$_3$: topologically protected surface states and hexagonal warping effects
摘要：
高品质的Bi $_2$ Te $_3$晶体的扫描隧道光谱研究表现出完美的对应关系的ARPES数据，从而使识别不同的制度测量的局域态密度（LDOS）。分析了LDOS在阶跃附近的振荡现象。在表面带振荡的主要部分强烈阻尼，支持拓扑保护的假设。在更高的能量，作为表面带成为凹，振荡出现分散与一个特定的波矢量，可能导致从一个非常规的六边形翘曲项。
英文摘要：
Scanning tunneling spectroscopy studies on high-quality Bi$_2$Te$_3$ crystals exhibit perfect correspondence to ARPES data, hence enabling identification of different regimes measured in the local density of states (LDOS). Oscillations of LDOS near a step are analyzed. Within the main part of the surface band oscillations are strongly damped, supporting the hypothesis of topological protection. At higher energies, as the surface band becomes concave, oscillations appear which disperse with a particular wave-vector that may result from an unconventional hexagonal warping term.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
