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Defect-induced perturbations of atomic monolayers on solid surfaces

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons48698

Schiessel,  H.
MPI for Polymer Research, Max Planck Society;

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Zitation

Schiessel, H., Oshanin, G., Cazabat, A. M., & Moreau, M. (2002). Defect-induced perturbations of atomic monolayers on solid surfaces. Physical Review E, 66(5): 056130.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-64B4-1
Zusammenfassung
We study long-range morphological changes in atomic monolayers on solid substrates induced by different types of defects; e.g., by monoatomic steps in the surface, or by the tip of an atomic force microscope (AFM), placed at some distance above the substrate. Representing the monolayer in terms of a suitably extended Frenkel-Kontorova-type model, we calculate the defect-induced density profiles for several possible geometries. In case of an AFM tip, we also determine the extra force exerted on the tip due to the tip-induced dehomogenization of the monolayer.