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  Scan speed limit in atomic force microscopy

Butt, H.-J., Siedle, P., Seifert, K., Fendler, K., Seeger, T., Bamberg, E., et al. (1993). Scan speed limit in atomic force microscopy. Journal of Microscopy, 169(1), 75-84. doi:10.1111/j.1365-2818.1993.tb03280.x.

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Genre: Journal Article

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 Creators:
Butt, Hans-Jürgen1, Author           
Siedle, Peter1, Author           
Seifert, Karsten1, Author           
Fendler, Klaus1, Author           
Seeger, Thomas1, Author           
Bamberg, Ernst1, Author           
Weisenhorn, A.L.2, Author
Goldie, K.3, Author
Engel, A.3, Author
Affiliations:
1Department of Biophysical Chemistry, Max Planck Institute of Biophysics, Max Planck Society, ou_2068289              
2Institut d'Histologie, Université Pérolles, CH‐1700 Fribourg, Switzerland, ou_persistent22              
3M. E. Müller Institut am Biozentrum, Universität Basel, CH‐4056 Basel, Switzerland, ou_persistent22              

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Free keywords: Scanning force microscope; AFM; STM; resonance frequency; damping constant
 Abstract: The scan speed limit of atomic force microscopes has been calculated. It is determined by the spring constant of the cantilever k, its effective mass m, the damping constant D of the cantilever in the surrounding medium and the stiffness of the sample. Techniques to measure k, k/m and D/m are described. In liquids the damping constant and the effective mass of the cantilever increase. A consequence of this is that the transfer function always depends on the scan speed when imaging in liquids. The practical scan speed limit for atomic resolution in vacuum is 0·1 μm/s while in water it increases to about 2 μm/s due to the additional damping of cantilever movements. Sample stiffness or damping of cantilever movements by the sample increase these limits. For soft biological materials imaged in water at a desired resolution of 1 nm the scan speed should not exceed 2 μm/s.

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Language(s): eng - English
 Dates: 1992-04-141992-08-072011-08-021993-01
 Publication Status: Published in print
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Journal of Microscopy
Source Genre: Journal
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Publ. Info: Oxford : Blackwell Science
Pages: - Volume / Issue: 169 (1) Sequence Number: - Start / End Page: 75 - 84 Identifier: ISSN: 0022-2720
CoNE: https://pure.mpg.de/cone/journals/resource/954927663105_2