Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
; Chinese Acad Sci, Inst High Energy Phys, Lab Synchrotron Radiat, Beijing 100039, Peoples R China
Angle-resolved photoemisson spectra were measured at normal emission on the cleaved (111) surface of C-60 single crystal. Valence band dispersions have been studied with varying photon energy of synchrotron radiation rays from 13.0 eV to 34.0 eV. The largest dispersions are 0.27 eV and 0.42 eV along the Gamma-L direction for the HOMO and HOMO-1 derived bands respectively. The dispersion curves coincide with the theoretical electronic structure fairly well.