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Measurement of energy dissipation between tungsten tip and Si(1 0 0)-( 2 × 1 ) using sub-Ångström oscillation amplitude non-contact atomic force microscope
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Date
2003-03-31
Author
Özer, H. Özgür
Atabak, Mehrdad
Oral, Ahmet
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Energy dissipation plays an important role in non-contact atomic force microscopy (nc-AFM), atomic manipulation and friction. In this work, we studied atomic scale energy dissipation between a tungsten tip and Si(1 0 0)-(2×1) surface. Dissipation measurements are performed with a high sensitivity nc-AFM using sub-Ångström oscillation amplitudes below resonance. We observed an increase in the dissipation as the tip is approached closer to the surface, followed by an unexpected decrease as we pass the inflection point in the energy–distance curve. This dissipation is most probably due to transformation of the kinetic energy of the tip into phonons and heat.
Subject Keywords
Surfaces, Coatings and Films
URI
https://hdl.handle.net/11511/42051
Journal
Applied Surface Science
DOI
https://doi.org/10.1016/s0169-4332(02)01472-1
Collections
Department of Physics, Article