论文标题
Si（553）-AU中金属样带的温度依赖性ARPE
Temperature dependent ARPES of the metallic-like bands in Si(553)-Au
论文作者
论文摘要
我们对使用角度分辨光发射光谱（ARPES）的金属样带（553）-AU的金属样带（553）-AU进行了彻底研究。我们的研究解决了表面和光压效应的短期稳定性所带来的挑战，我们克服了在填充带和费米 - 速度中提取变化的挑战。我们的发现揭示了Si（553）-AU的步进边缘的低温阶段，这是有关其结构或电子性质的持续争论的话题。通过与结构相关的低温到高温相变的理论预测进行比较，我们发现填充和费米的速度不会相应地改变，从而排除了这种情况。我们的研究有助于更好地了解该材料系统，并为将来的研究提供了重要的参考。
We conducted a thorough investigation into the temperature dependence of the metallic-like bands of Si(553)-Au using angular-resolved photoemission spectroscopy (ARPES). Our study addresses the challenges posed by the short-term stability of the surface and photo-voltage effects, which we overcame to extract changes in the band-filling and Fermi-velocity. Our findings shed light on the low-temperature phase of the step edge in Si(553)-Au, which has been a topic of ongoing debate regarding its structural or electronic nature. Through comparison with theoretical predictions of a structural-related low-temperature to high-temperature phase transition, we discovered that the band-filling and Fermi-velocity do not change accordingly, thereby ruling out this scenario. Our study contributes to a better understanding of this material system and provides an important reference for future research.
