Most recently, theoretical calculations predicted the stability of a novel two-dimensional phosphorus honeycomb lattice named blue phosphorus. Here, we report on the growth of blue phosphorus on Au(111) and unravel its structural details using diffraction, microscopy and theoretical calculations. Most importantly, by utilizing angle-resolved photoemission spectroscopy we identify its momentum-resolved electronic structure. We find that Au(111) breaks the sublattice symmetry of blue phosphorus leading to an orbital-dependent band renormalization upon the formation of a (4 × 4) superstructure. Notably, the semiconducting two-dimensional phosphorus realizes its valence band maximum at 0.9 eV binding energy, however, shifted in momentum space due to the substrate-induced band renormalization.

中文翻译：

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Au（111）上蓝色磷的能带重整化

最近，理论计算预测了名为蓝磷的新型二维磷蜂窝晶格的稳定性。在这里，我们报道了Au（111）上蓝磷的生长，并使用衍射，显微镜和理论计算揭示了其结构细节。最重要的是，通过利用角度分辨光发射光谱，我们可以确定其动量分辨电子结构。我们发现Au（111）打破了蓝磷的亚晶格对称性，导致在形成（4×4）超结构时轨道相关的能带重新归一化。值得注意的是，半导体二维磷在0.9 eV的结合能下实现了其价带最大值，但是由于基质诱导的能带重归一化，其动量空间发生了位移。