The electronic structure of potassium intercalated Tm@C82
| Autor: | Pichler, T., Winter, J., Grazioli, C., Golden, M.S., Knupfer, M., Kuran, P., Kirbach, U., Dunsch, L., Fink, J. |
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| Přispěvatelé: | WZI (IoP, FNWI) |
| Rok vydání: | 1999 |
| Předmět: |
Valence (chemistry)
Chemistry Photoemission spectroscopy Mechanical Engineering Potassium Intercalation (chemistry) Inorganic chemistry Metals and Alloys Valency chemistry.chemical_element Electronic structure Condensed Matter Physics Electronic Optical and Magnetic Materials Ion Crystallography X-ray photoelectron spectroscopy Mechanics of Materials Materials Chemistry |
| Zdroj: | Synthetic metals, 103, 2470-2473. Elsevier |
| ISSN: | 0379-6779 |
| Popis: | We present studies of the electronic structure of the potassium intercalated endohedral monometallofullerene Tm@C 82 using photoemission spectroscopy. Upon intercalation we find evidence for at least two additional stable phases: an intermediate phase K 3 Tm@C 82 which forms a face centered molecular crystal and a final compound K 6 Tm@C 82 with a body centered structure. From valence band photoemission we observe that upon intercalation the unoccupied states are subsequently filled with potassium 4s electrons ending up with a charge transfer of eight electrons on the C 82 cage. The valency of the Tm ions does not change to values bigger than two upon the intercalation process. For none of the intermediate potassium concentations metallic phases are observed. |
| Databáze: | OpenAIRE |
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