Polynomial force approximations and multifrequency atomic force microscopy
2013 (English)In: Beilstein Journal of Nanotechnology, ISSN 2190-4286, Vol. 4, no 1, 352-360 p.Article in journal (Refereed) Published
We present polynomial force reconstruction from experimental intermodulation atomic force microscopy (ImAFM) data. We study the tip-surface force during a slow surface approach and compare the results with amplitude-dependence force spectroscopy (ADFS). Based on polynomial force reconstruction we generate high-resolution surface-property maps of polymer blend samples. The polynomial method is described as a special example of a more general approximative force reconstruction, where the aim is to determine model parameters that best approximate the measured force spectrum. This approximative approach is not limited to spectral data, and we demonstrate how it can be adapted to a force quadrature picture.
Place, publisher, year, edition, pages
2013. Vol. 4, no 1, 352-360 p.
AFM, Atomic force microscopy, Force spectroscopy, Intermodulation, Multifrequency, Polynomial
IdentifiersURN: urn:nbn:se:kth:diva-122572DOI: 10.3762/bjnano.4.41ISI: 000320048600001ScopusID: 2-s2.0-84880255850OAI: oai:DiVA.org:kth-122572DiVA: diva2:622850
FunderSwedish Research CouncilVinnovaKnut and Alice Wallenberg Foundation
QC 20131204. Updated from accepted to published.2013-05-232013-05-232013-12-04Bibliographically approved