Anomalous electronic behaviour of Na superfullerides: theory and experiment
- 20 June 1996
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 34 (9) , 699-704
- https://doi.org/10.1209/epl/i1996-00517-6
Abstract
Theory and experiment on NaxC60 agree that there is an anomalous trend as well as a limitation in the charge transfer from the sodiums to C60, for x > 6. As revealed by both ab initio calculations and electron energy loss spectroscopy, the origin lies in the formation of interstitial states that trap a part of the excess electrons and that are neither C60- nor sodium-derived. This may well be a general characteristic of heavily doped intercalated fullerides and other cluster-based solid compounds.Keywords
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