Phys. Rev. Lett. 105, 086103 (2010) [4 pages]Imaging Pauli Repulsion in Scanning Tunneling Microscopy
See accompanying Physics Focus A scanning tunneling microscope (STM) has been equipped with a nanoscale force sensor and signal transducer composed of a single D2 molecule that is confined in the STM junction. The uncalibrated sensor is used to obtain ultrahigh geometric image resolution of a complex organic molecule adsorbed on a noble metal surface. By means of conductance-distance spectroscopy and corresponding density functional calculations the mechanism of the sensor and transducer is identified. It probes the short-range Pauli repulsion and converts this signal into variations of the junction conductance. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.105.086103
DOI:
10.1103/PhysRevLett.105.086103
PACS:
68.37.Ef, 68.37.Ps, 67.63.Cd
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