Abstract
We present C 1s autoionization studies of condensed and Xe matrix-isolated C60 molecules which give direct information on electron hopping rates in solid C60 in the presence of a C 1s vacancy. These rates vary dramatically for the first three C 1s absorption excitation maxima in a pattern consistent with strong electron-electron correlations. Hopping associated with the second excited state involves extramolecular screening comparable to the Mott-Hubbard pseudogap predicted for K3C60, suggesting intramolecular correlations do not dominate electron transport in the alkali fullerides.
Original language | English |
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Article number | 3721-3724 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 71 |
Issue number | 22 |
DOIs | |
Publication status | Published - 29-Nov-1993 |
Keywords
- FULLERIDES
- AUTOIONIZATION
- highly correlated electrons