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Abstract: A scanning tunneling microscope STM has been equipped with a nanoscaleforce sensor and signal transducer composed of a single D2 molecule that isconfined in the STM junction. The uncalibrated sensor is used to obtainultra-high geometric image resolution of a complex organic molecule adsorbed ona noble metal surface. By means of conductance-distance spectroscopy andcorresponding density functional calculations the mechanism of thesensor-transducer is identified. It probes the short-range Pauli repulsion andconverts this signal into variations of the junction conductance.



Author: C. Weiss, C. Wagner, C. Kleimann, M. Rohlfing, F. S. Tautz, R. Temirov

Source: https://arxiv.org/







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