van der waals interactions in force microscopy
β Scribed by Dr. Uwe Hartmann
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 428 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0935-9648
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Dynamic force microscopy has proved to be a powerful imaging tool. Here, the tip of an atomic force microscope is vibrated at a high frequency, typically the resonance frequency of the lever sensor, and at a large vibration amplitude, typically of the order of 10 nm. Imaging contrast is obtained fro
On the basis of the adiabatic connection formula we propose several approximations for the total correlation energy functional, which, in the limit of two separated neutral subsystems, correctly reproduce the van der Waals R y6 behavior. We have calculated the corresponding van der Waals coefficient