Charge density waves (CDWs) in kagome metals have been tied to many exotic phenomena. Here, using spectroscopic-imaging scanning tunneling microscopy and angle-resolved photoemission spectroscopy, we study the charge order in kagome metal ScV₆Sn₆. The similarity of electronic band structures of ScV₆Sn₆ and TbV₆Sn₆ (where charge ordering is absent) suggests that charge ordering in ScV₆Sn₆ is unlikely to be primarily driven by Fermi surface nesting of the Van Hove singularities. In contrast to the CDW state of cousin kagome metals, we find no evidence supporting rotation symmetry breaking. Differential conductance dI/dV spectra show a partial gap Δ¹_CO ≈ 20 meV at the Fermi level. Interestingly, dI/dV maps reveal that charge modulations exhibit an abrupt phase shift as a function of energy at energy much higher than Δ¹_CO, which we attribute to another spectral gap. Our experiments reveal a distinctive nature of the charge order in ScV₆Sn₆ with fundamental differences compared to other kagome metals.

戈薇金属中的电荷密度波（CDW）与许多奇异现象有关。在这里，我们使用光谱成像扫描隧道显微镜和角分辨光电子能谱研究了 kagome 金属 ScV ₆ Sn ₆中的电荷顺序。_{ScV 6} Sn ₆和TbV ₆ Sn ₆（其中不存在电荷排序）的电子能带结构的相似性表明ScV ₆ Sn ₆中的电荷排序不太可能主要由范霍夫奇点的费米表面嵌套驱动。与戈薇金属的 CDW 态相反，我们没有发现任何证据支持旋转对称性破缺。微分电导 d I /d V谱显示 费米能级处的部分能隙Δ ¹ _{CO ≈ 20 meV。}有趣的是，d I /d V图显示，电荷调制在能量远高于Δ ¹ _CO时表现出作为能量函数的突然相移，我们将其归因于另一个光谱间隙。_{我们的实验揭示了 ScV 6} Sn ₆中电荷顺序的独特性质，与其他 kagome 金属相比具有根本差异。