Electronic structure of metallofullerene LaC82: Electron transfer from lanthanum to C82

Shojun Hino, Hiroaki Takahashi, Kentaro Iwasaki, Kazuo Matsumoto, Takafumi Miyazaki, Shinji Hasegawa, Koichi Kikuchi, Yohji Achiba

Research output: Contribution to journalArticlepeer-review

110 Citations (Scopus)

Abstract

Ultraviolet photoelectron spectra (UPS) of LaC82 questioning whether the La atom is inside the C cage or not are measued for the first time. The UPS of LaC82 is analogous to those ofC82 but there is a critical differnce in the region just below the Fermi level. It is on appearance of two new peak components at 0.9 and 1.6 eV with the intensity ratio of 1:2 in the UPS of LaC82. Their origin is the transfer of three electrons from La to C82 to form the electronic structure of La+3C82-3. Present results combined with theoretical calculations on the position of the La atom in the molecule assert an encapsulation of the La atom inside the C cage.

Original languageEnglish
Pages (from-to)4261-4263
Number of pages3
JournalPhysical Review Letters
Volume71
Issue number25
DOIs
Publication statusPublished - Jan 1 1993
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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