Synchrotron radiation photoemission spectrum study on K3C60 film |
| |
Authors: | Hongnian Li Yabo Xu Shining Bao Haiyang Li Peimo He Haijie Qian Fengqin Liu Yibulaxi Kuirexi |
| |
Affiliation: | (1) Department of Physics, Zhejiang University, 310027 Hangzhou, China;(2) Laboratory of Synchrotron Radiation, Institute of High Energy Physics, Chinese Academy of Sciences, 100039 Beijing, China |
| |
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. |
| |
Keywords: | K3C60 single crystal film SR-ARPES conduction band structure |
本文献已被 SpringerLink 等数据库收录! |
|