Squeezing out hidden force information from scanning force microscopes

Brian A. Todd; Steven J. Eppell; Fredy R. Zypman

doi:10.1063/1.1405430

Squeezing out hidden force information from scanning force microscopes

Brian A. Todd, Steven J. Eppell, Fredy R. Zypman

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A method to measure force-separation curves with a scanning force microscope is presented. Forces within the "snap to contact" are obtained by high-speed (MHz) measurement of cantilever deflection signals analyzed using the generalized beam theory. Numerical simulation is used to demonstrate the effectiveness of the method. Experimental results show that the method yields complete continuous force-separation curves with flimsy cantilevers in fluids allowing for sensitive force measurements in nonvacuum environments.

Original language	English
Pages (from-to)	1888-1890
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	12
DOIs	https://doi.org/10.1063/1.1405430
State	Published - 17 Sep 2001
Externally published	Yes

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title = "Squeezing out hidden force information from scanning force microscopes",

abstract = "A method to measure force-separation curves with a scanning force microscope is presented. Forces within the {"}snap to contact{"} are obtained by high-speed (MHz) measurement of cantilever deflection signals analyzed using the generalized beam theory. Numerical simulation is used to demonstrate the effectiveness of the method. Experimental results show that the method yields complete continuous force-separation curves with flimsy cantilevers in fluids allowing for sensitive force measurements in nonvacuum environments.",

author = "Todd, {Brian A.} and Eppell, {Steven J.} and Zypman, {Fredy R.}",

year = "2001",

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AU - Eppell, Steven J.

AU - Zypman, Fredy R.

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N2 - A method to measure force-separation curves with a scanning force microscope is presented. Forces within the "snap to contact" are obtained by high-speed (MHz) measurement of cantilever deflection signals analyzed using the generalized beam theory. Numerical simulation is used to demonstrate the effectiveness of the method. Experimental results show that the method yields complete continuous force-separation curves with flimsy cantilevers in fluids allowing for sensitive force measurements in nonvacuum environments.

AB - A method to measure force-separation curves with a scanning force microscope is presented. Forces within the "snap to contact" are obtained by high-speed (MHz) measurement of cantilever deflection signals analyzed using the generalized beam theory. Numerical simulation is used to demonstrate the effectiveness of the method. Experimental results show that the method yields complete continuous force-separation curves with flimsy cantilevers in fluids allowing for sensitive force measurements in nonvacuum environments.

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SP - 1888

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JF - Applied Physics Letters

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Squeezing out hidden force information from scanning force microscopes

Abstract

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