Measuring site-specific cluster-surface bond formation.

  title={Measuring site-specific cluster-surface bond formation.},
  author={Regina Hoffmann and C. J. W. Barth and Adam S. Foster and Alexander L. Shluger and Hans J. Hug and H J G{\"u}ntherodt and R. M. Nieminen and Michael Reichling},
  journal={Journal of the American Chemical Society},
  volume={127 50},
Recent advances in dynamic force microscopy show that it is possible to measure the forces between atomically sharp tips and particular atomic positions on surfaces as a function of distance. However, on most ionic surfaces, the positive and negative ions can so far not be distinguished. In this paper, we use the CaF2(111) surface, where atomic resolution force microscopy has allowed identification of the positions of the Ca2+ and F- ions in the obtained images, to demonstrate that short-range… CONTINUE READING

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