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Probing viscoelastic response of soft material surfaces at the nanoscale
KTH, School of Engineering Sciences (SCI), Applied Physics, Nanostructure Physics. KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.ORCID iD: 0000-0001-8534-6577
KTH, School of Engineering Sciences (SCI), Applied Physics, Nanostructure Physics. KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.
KTH, School of Engineering Sciences (SCI), Applied Physics, Nanostructure Physics. KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.ORCID iD: 0000-0003-0675-974X
KTH, School of Engineering Sciences (SCI), Applied Physics, Nanostructure Physics. KTH, Centres, Nordic Institute for Theoretical Physics NORDITA.ORCID iD: 0000-0002-5923-0279
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2016 (English)In: Soft Matter, ISSN 1744-683X, E-ISSN 1744-6848, Vol. 12, no 2, 619-624 p.Article in journal (Refereed) Published
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Abstract [en]

We study the interaction between an AFM tip and a soft viscoelastic surface. Using a multifrequency method we measure the amplitude-dependence of the cantilever dynamic force quadratures, which clearly show the effect of finite relaxation time of the viscoelastic surface. A model is introduced which treats the tip and surface as a two-body dynamic problem with a nonlinear interaction depending on their separation. We find good agreement between simulations of this model and experimental data on polymer blend samples for a variety of materials and measurement conditions.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016. Vol. 12, no 2, 619-624 p.
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Chemical Sciences
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URN: urn:nbn:se:kth:diva-180981DOI: 10.1039/c5sm02154eISI: 000367259700035PubMedID: 26479475Scopus ID: 2-s2.0-84952304867OAI: oai:DiVA.org:kth-180981DiVA: diva2:898537
Note

QC 20160128

Correction in: Soft Matter 12:2, page. 625. Doi: 10.1039/C5SM90197A, WOS: 000367259700036

Available from: 2016-01-28 Created: 2016-01-26 Last updated: 2016-02-08Bibliographically approved

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Haviland, David B.van Eysden, Cornelius AnthonyForchheimer, DanielPlatz, Daniel
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