Published in
American Physical Society, Physical Review Letters, 4(99), 2007
DOI: 10.1103/physrevlett.99.046802
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Mixing of Electronic States in Pentacene Adsorption on Copper
,
Chiara Baldacchini,
Arrigo Calzolari,
Rosa Di Felice,
Alice Ruini ,
Elisa Molinari,
Maria Grazia Betti
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Abstract
By combining experimental and theoretical approaches, we study the adsorption of pentacene on copper as a model for the coupling between aromatic molecules and metal surfaces. Our results for the interface electronic structure are not compatible with a purely physisorption picture, which is conventionally employed for such systems. Nay, we demonstrate electronic mixing between molecular orbitals and metal electronic states.