Electron-spectroscopy study of LiC60: Charge transfer and dimer formation

Joachim Schnadt, Paul A. Brühwiler, Nils Mårtensson, Andreas Lassesson, Frank Rohmund, Eleanor E. B. Campbell

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Li−C60 compounds Lix¯C60 were studied for average Li concentration x¯<~1 using photoelectron spectroscopy. Strong evidence is found for the formation of LiC60 dimers, as well as a second phase. The study suggests that the smallest alkali-metal Li bonds to C60 largely ionically for certain configurations. An investigation of the Li 1s level shows that under certain conditions the energetics favor a backdonation of the transferred electron to the Li ion.
Original languageEnglish
Pages (from-to)4253
JournalPhysical Review B (Condensed Matter)
Publication statusPublished - 2000

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