Berlin 2012 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 6: Scanning probe methods I
O 6.8: Vortrag
Montag, 26. März 2012, 12:15–12:30, MA 043
Single Molecule and Single Atom Sensors for Atomic Resolution Imaging of Chemically Complex Surfaces — •Georgy Kichin1,2, Christian Weiss1,2, Christian Wagner1,2, Stefan Tautz1,2, and Ruslan Temirov1,2 — 1Peter Grünberg Institute (PGI-3),Forschungszentrum Jülich, Germany — 2JARA-Fundamentals of Future Information Technology, Germany
To image the inner structure of molecules have always been the challenge for the surface science. Recently we have demonstrated that this task can be solved with a low-temperature scanning tunneling microscope (STM) if molecular hydrogen or deuterium is condensed in the junction [1,2,3]. In this contribution we will demonstrate that individual Xe atom, single CO and CH4 molecules adsorbed at the tip apex of the STM produce similar resolution as achieved with hydrogen [4]. This result supports our earlier claim that a single molecule adsorbed at the STM tip can act as a nanoscale force sensor / signal transducer.
[1] R. Temirov et al. New J. Phys.,10, 053012, (2008)
[2] C. Weiss et al. Phys. Rev. Lett., 105, 086103, (2010)
[3] C. Weiss et al. J. Am. Chem. Soc., 132, 11864, (2010)
[4] G. Kichin et al. J. Am. Chem. Soc., 133, 16847, (2011)