| Issue |
Europhys. Lett.
Volume 39, Number 2, July II 1997
|
|
|---|---|---|
| Page(s) | 153 - 158 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00542-5 | |
| Published online | 01 September 2002 | |
Tip-sample interactions in scanning force microscopy using the frequency-modulation technique: Experiments and computer simulation
Physikalisches Institut, Westfälische Wilhelms-Universität,
D-48149 Münster, Germany
Received:
13
February
1997
Accepted:
12
June
1997
The resonance frequency and the damping behaviour of a vibrating cantilever as used in dynamic Scanning Force Microscopy (SFM) is investigated with the frequency modulation (FM) technique. The properties of a silicon-cantilever/tip vibrating in front of a silicon surface were studied under UHV conditions as a function of the tip-sample distance. The experimental results are compared with a computer simulation. The different characteristic parts of the experimental curves can be interpreted in terms of attractive and repulsive forces acting on the cantilever as well as the behaviour of the amplitude control electronics. Using the computer simulation noncontact regimes can clearly be distinguished from intermittent contact regimes.
PACS: 61.16.Ch – Scanning probe microscopy: scanning tunneling, atomic force, scanning optical, magnetic force, etc / 02.60.Cb – Numerical simulation; solution of equations / 62.20.-x – Mechanical properties of solids
© EDP Sciences, 1997
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