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Conservative and dissipative interactions in dynamic force microscopy

✍ Scribed by Dürig, U.

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
220 KB
Volume
27
Category
Article
ISSN
0142-2421

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✦ Synopsis

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 from measuring shifts of the resonance frequency, which provides information on conservative interactions, and of the Q-factor, which is sensitive to dissipative interactions. Problems associated with interaction sensing are discussed from a theoretical and an experimental point of view.

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