Abstract
K3C60, single crystal film was prepared on the cleaved (111) surface of C60, single crystal. Synchrotron radiation angle-resolved photoemission spectra were measured at normal emission with sample temperature at × 150K. Up to four subpeaks of LUMO-derived band were observed. These sub-peaks exhibit distinct energy dispersions which resemble in general the theoretical ones calculated for K3C60 at low temperature with the so-called one-dimensional disordered structure. But there is large deviation of experimental sub-band intervals from the theoretical values. This result is meaningful for the studies of the physical properties of alkali-doped C60 solids, e.g. the mechanism for superconductivity.
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Li, H., Xu, Y., Bao, S. et al. Synchrotron radiation photoemission spectrum study on K3C60 film. Sci. China Ser. A-Math. 43, 1189–1194 (2000). https://doi.org/10.1007/BF02872197
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DOI: https://doi.org/10.1007/BF02872197