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Tip–sample interactions: Extraction of single molecular pair potentials from force curves

Unger, Marc A. and O'Connor, Stephen D. and Baldeschwieler, John D. (1996) Tip–sample interactions: Extraction of single molecular pair potentials from force curves. Journal of Vacuum Science and Technology B, 14 (2). pp. 1302-1307. ISSN 1071-1023. http://resolver.caltech.edu/CaltechAUTHORS:UNGjvstb96

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Abstract

This article describes a method for extracting the true tip–sample potential from an experimental force curve in atomic force microscopy. This potential is not the negative integral of the force curve. Rather, the potential is a more complicated function of the force curve and cantilever spring constant. If information about the shape of the tip is known, a decorrelation may be performed to extract molecular pair potentials from the total tip–sample potential. Applications and limitations of this method are discussed.


Item Type:Article
Additional Information:©1996 American Vacuum Society (Received 24 July 1995; accepted 19 December 1995)
Subject Keywords:PROBES; INTERMOLECULAR FORCES; POTENTIALS; CALCULATION METHODS; ATOMIC FORCE MICROSCOPY
Record Number:CaltechAUTHORS:UNGjvstb96
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:UNGjvstb96
Alternative URL:http://dx.doi.org/10.1116/1.589085
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3369
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:01 Jun 2006
Last Modified:26 Dec 2012 08:54

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