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Simultaneous non-contact atomic force microscopy (nc-AFM)/STM imaging and force spectroscopy of Si(1 0 0)(2 × 1) with small oscillation amplitudes
Date
2002-03-28
Author
Özer, H.Özgür
Atabak, Mehrdad
Ellialtǧlu, Recai M.
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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Si(1 0 0)(2 x 1) surface is imaged using a new non-contact atomic force microscopy (nc-AFM)/STM with sub-Angstrom oscillation amplitudes using stiff tungsten levers. Simultaneous force gradient and STM images of individual dimers and atomic scale defects are obtained. We measured force-distance (f-d) curves with different tips. Some of the tips show long force interactions, whereas some others resolve short-range interatomic force interactions. We observed that the tips showing short-range force interaction give atomic resolution in force gradient scans. This result suggests that short-range force interactions are responsible for atomic resolution in nc-AFM.
Subject Keywords
Non-Contact Atomic Force Microscopy
,
Small Oscillation Amplitudes
,
Si(100)(2 X 1)
,
Force-Distance Spectroscopy
,
Short-Range Forces
URI
https://hdl.handle.net/11511/40784
Journal
Applied Surface Science
DOI
https://doi.org/10.1016/s0169-4332(01)00942-4
Collections
Department of Physics, Article