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http://hdl.handle.net/2307/313
Title: | Electronic states of CuPc chains on the Au(110) surface | Authors: | Evangelista, Ferdinand Ruocco, Alessandro Gotter, Roberto Cossaro, A. Floreano, L. Morgante, A. Crispoldi, F. Betti, M. G. Mariani, C. |
Keywords: | Ultra-thin films Copper-phtalocyanine AR-UPS Interface state dispersion Au(110) Synchrotn Organic molecules Surface reconstruction |
Issue Date: | Nov-2009 | Publisher: | AIP | Abstract: | The electronic properties of Cu-phthalocyanine (CuPc) molecules flatlying along the channels of the Au(110) reconstructed surface have beeninvestigated by means of ultraviolet and x-ray photoelectronspectroscopy. The ordered chains give rise to a highly orderedsingle-layer structure with a (5x3) symmetry. Although from thecore-level analysis not any significant charge transfer between themolecules and the underlying Au surface is observed, the valence bandphotoemission data bring to light CuPc-induced features localized atthe interface. In particular, energy versus momentum dispersion of aninterface state reveals a bandwidth of about 90 meV along the enlargedAu channels, where the CuPc chains are formed, with a defined fivefoldsymmetry well fitting the CuPc intermolecular distance. | URI: | http://hdl.handle.net/2307/313 | ISSN: | 0021-9606 | DOI: | 10.1063/1.3257606 |
Appears in Collections: | A - Articolo su rivista X_Dipartimento di Fisica 'Edoardo Amaldi' |
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