Divalent scandium atoms in the cage of C84

T. Takahashi, A. Ito, M. Inakuma, H. Shinohara

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


X-ray spectroscopy (XPS) and ultraviolet photoemission spectroscopy (UPS) have been performed on an endohedral fullerene Sc2C84. The Sc 2p XPS core level of Sc2C84 was found to be located just between those of the metal and the oxide (Sc2O3). This suggests that Sc atoms encapsulated in C84 take an intermediate valency between those of the metal (Sc0±) and the oxide (Sc3+). UPS shows that solid Sc2C84 is an insulator with an energy gap of about 1 eV. It was also found that Sc2C84 does not undergo thermal decomposition upon evaporation and is extremely stable even in the air.

Original languageEnglish
Pages (from-to)13812-13814
Number of pages3
JournalPhysical Review B
Issue number19
Publication statusPublished - 1995
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics


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