Abstract.
Using angle-dependent photoemission spectra of core and valence levels we show that metallic, single crystal K3C60 is terminated by an insulating or weakly-conducting surface layer. We attribute this to the effects of strong intermolecular correlations combined with the average surface charge state. Several controversies on the electronic structure are thereby resolved.
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Received: 16 July 2004, Published online: 5 November 2004
PACS:
71.20.Tx Fullerenes and related materials; intercalation compounds - 73.20.-r Electron states at surfaces and interfaces - 79.60.Bm Clean metal, semiconductor, and insulator surfaces
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Schiessling, J., Kjeldgaard, L., Käämbre, T. et al. Insulating surface layer on single crystal K \(\mathsf{_{3}}\mathsf{C}\mathsf{_{60}}\) . Eur. Phys. J. B 41, 435–438 (2004). https://doi.org/10.1140/epjb/e2004-00335-2
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DOI: https://doi.org/10.1140/epjb/e2004-00335-2