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Metastable surface phase for NaxC60 |
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| Authors: | J Schiessling I Marenne P Rudolf |
| Institution: | a Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands b Department of Physics, Uppsala University, Box 530, SE-751 21 Uppsala, Sweden c LISE, Facultés Universitaires Notre Dame de la Paix, Rue de Bruxelles 61, B-5000 Namur, Belgium |
| Abstract: | NaxC60 thin films with Na concentration 0 ? x ? 3 were investigated using angle-dependent photoelectron spectroscopy. For low doping we observed two distinct fulleride phases coexisting with regions of pristine C60. One of these fulleride phase is predominantly formed close to the surface and disappears after annealing and further addition of Na. At higher doping a phase with stoichiometry of x = 3 is formed. |
| Keywords: | Fullerenes Photoelectron spectroscopy |
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