Localization of substrate-induced modification in the electronic structure of C-60 at fullerene-metal interfaces

Michael R.C. Hunt, Petra Rudolf, Silvio Modesti

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Photoemission and electron-energy-loss-spectroscopy studies of C60 films deposited on Au(110) demonstrate that only the first layer of molecules, directly in contact with the metal substrate, display significant changes in electronic structure. If the Au(110) surface is precovered with Cs it is found that, at 298 K, the Cs can diffuse readily into a C60 thin film, preventing the formation of a localized interface. However, if a Cs precovered Au(110) sample is held at 98 K, subsequent deposition of C60 results in the formation of a spatially localized interface with only the closest two fullerene layers to the original metal surface modified by charge transfer.
Original languageEnglish
Pages (from-to)7882-7888
Number of pages7
JournalPhysical Review B
Issue number12
Publication statusPublished - 15-Mar-1997

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