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测量了C60单晶(111)解理面法向发射的角分辨光电子谱.利用同步辐射光源研究了对应于分子轨道HOMO及HOMO-1的能带的色散关系.实验观察到HOMO和HOMO-1能带在Γ—L方向存在明显的色散,最大色散分别为027eV和042eV.色散曲线与理论电子结构基本符合.Angle-resolved photoemisson spectra were measured at normal emission on the cleaved (111) surface of C60 single crystal.Valence band dispersions have been studied with varying photon energy of synchrotron radiation rays from 13.0eV to 34.0eV. The largest dispersions are 0.27eV and 0.42eV along the Γ—L direction for the HOMO and HOMO-1 derived bands respectively. The dispersion curves coincide with the theoretical electronic structure fairly well.







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