Different electronic structures of C6Li and C8K graphite intercalation compounds studied by positron annihilation |
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| Authors: | E. Cartier F. Heinrich P. Pfluger H.-J. Güntherodt |
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| Affiliation: | Laboratorium für Festkörperphysik, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland;Institut für Physik, Universität Basel, CH-4056 Basel, Switzerland |
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| Abstract: | The 2λ-angular correlation distributions of the stage 1 Graphite Intercalation Compounds C6Li and C8K are found to be very different. For C8K, the distributions are dominated by a free electron contribution similar to those in pure alkali metals. In contrast, the distributions of C6Li remain similar to those of graphite. The two materials are classified into s(+ π)-band metals (C8K) and π-band metals (C6Li). |
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