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  Inverting dynamic force microscopy: From signals to time- resolved interaction forces

Stark, M., Stark, R. W., Heckl, W. M., & Guckenberger, R. (2002). Inverting dynamic force microscopy: From signals to time- resolved interaction forces. Proceedings of the National Academy of Sciences of the United States of America, 99(13), 8473-8478.

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Genre: Zeitschriftenartikel
Alternativer Titel : Proc. Natl. Acad. Sci. U. S. A.

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Stark, M., Autor
Stark, R. W., Autor
Heckl, W. M., Autor
Guckenberger, R.1, Autor           
Affiliations:
1Baumeister, Wolfgang / Molecular Structural Biology, Max Planck Institute of Biochemistry, Max Planck Society, ou_1565142              

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 Zusammenfassung: Transient forces between nanoscale objects on surfaces govern friction, viscous flow, and plastic deformation, occur during manipulation of matter, or mediate the local wetting behavior of thin films. To resolve transient forces on the (sub) microsecond time and nanometer length scale, dynamic atomic force microscopy (AFM) offers largely unexploited potential. Full spectral analysis of the AFM signal completes dynamic AFM. Inverting the signal formation process, we measure the time course of the force effective at the sensing tip. This approach yields rich insight into processes at the tip and dispenses with a priori assumptions about the interaction, as it relies solely on measured data. Force measurements on silicon under ambient conditions demonstrate the distinct signature of the interaction and reveal that peak forces exceeding 200 nN are applied to the sample in a typical imaging situation. These forces are 2 orders of magnitude higher than those in covalent bonds.

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Sprache(n): eng - English
 Datum: 2002-06-25
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 31400
ISI: 000176478200005
 Art des Abschluß: -

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Titel: Proceedings of the National Academy of Sciences of the United States of America
  Alternativer Titel : Proc. Natl. Acad. Sci. U. S. A.
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 99 (13) Artikelnummer: - Start- / Endseite: 8473 - 8478 Identifikator: ISSN: 0027-8424