INSITU INFRARED TRANSMISSION STUDY OF RB-DOPED AND K-DOPED FULLERENES

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关键词: SUPERCONDUCTIVITY;    C-60;    BUCKMINSTERFULLERENE;    SPECTRA;    CARBON;    RAMAN;    K3C60;    C60;   

DOI  :  10.1103/PhysRevB.47.14607

来源: SCIE

【 摘 要 】

We have measured the four IR-active C60 molecular vibrations in MxC60 (M = K, Rb) as a function of doping x. We observe discontinuous changes in the vibrational spectra showing four distinct phases (presumably x = 0,3,4, and 6). The 1427-cm-1 and 576-cm-1 modes show the largest changes shifting downward in frequency in four steps as the doping increases. Several very weak modes are visible in the x = 6 phase and are possibly Raman modes becoming weakly optically active. We present quantitative fits of the data and calculate the electron-phonon coupling of the 1427 cm-1 IR mode.

【 授权许可】

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