Broken Symmetry of an Adsorbed Molecular Switch Determined by Scanning Tunneling Spectroscopy


  • Funding by the Deutsche Forschungsgemeinschaft through the SFB 677 is acknowledged.


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An asymmetric turn: Scanning tunneling spectroscopy has been used to analyze the structure of tris[4-(phenylazo)phenyl)]amine on a Au(111) surface. A degenerate marker state serves as a sensitive probe for the structure of the adsorbed molecules.