Electronic Properties of Ba-Intercalated Fullerides |
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| Authors: | Y. Iwasa X. H. Chen T. Takenobu T. Mitani |
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| Affiliation: | 1. Japan Advanced Institute of Science and Technology , Tatsunokuchi, Ishikawa , 923-1292 , Japan;2. Department of Physics , The University of Science and Technology of China , Hefei, Anhui , 230026 , P. R. China |
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| Abstract: | ![]()
Abstract Raman spectra have been measured on BaxC60 binary systems for x=3, 4 and 6. The pentagonal pinch Ag(2) mode exhibits a softening in an approximately proportional manner to the formal valence of C60 molecule. This result suggests that the valence of C60 in Ba doped systems are understood by the naive ionic crystal model based on Ba2+. The broader Raman peaks in superconducting Ba4C60 indicates that the electron-phonon interaction is considerably large comparing to those for Ba3C60 and Ba6C60. |
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| Keywords: | C60 Ba intercalated fullerides Raman spectra |
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