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dc.contributor.authorSantos Hernández, Sergio
dc.contributor.authorPhillips, M.A.
dc.contributor.authorVerdaguer, Albert
dc.contributor.authorFont Teixidó, Josep
dc.contributor.authorChiesa, Matteo
dc.contributor.authorGadelrab,, K.
dc.contributor.authorStefancich, M.
dc.contributor.authorArmstrong, P.
dc.contributor.authorLi, G.
dc.contributor.authorSouier, T.
dc.contributor.authorThomson, Neil H.
dc.contributor.authorBarcons Xixons, Víctor
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Disseny i Programació de Sistemes Electrònics
dc.identifier.citationChiesa, M. [et al.]. Investigation of nanoscale interactions by means of subharmonic excitation. "Journal of Physical Chemistry Letters", 16 Agost 2012, vol. 3, núm. 16, p. 2125-2129.
dc.description.abstractMultifrequency atomic force microscopy holds promise as a method to provide qualitative and quantitative information about samples with high spatial resolution. Here, we provide experimental evidence of the excitation of subharmonics in ambient conditions in the regions where capillary interactions are predicted to be the mechanism of excitation. We also experimentally decouple a second mechanism for subharmonic excitation that is highly independent of environmental conditions such as relative humidity. This implies that material properties could be mapped. Subharmonic excitation could lead to experimental determination of surface water affinity in the nanoscale whenever water interactions are the mechanism of excitation.
dc.format.extent5 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica
dc.subject.otherAmbient conditions
dc.subject.otherCapillary interactions
dc.subject.otherEnvironmental conditions
dc.subject.otherExperimental determination
dc.subject.otherExperimental evidence
dc.subject.otherHigh spatial resolution
dc.subject.otherMaterial property
dc.subject.otherMulti frequency
dc.subject.otherNano scale
dc.subject.otherNanoscale interactions
dc.subject.otherQuantitative information
dc.subject.otherSub-harmonic excitation
dc.subject.otherWater affinity
dc.subject.otherWater interactions
dc.titleInvestigation of nanoscale interactions by means of subharmonic excitation
dc.contributor.groupUniversitat Politècnica de Catalunya. SEPIC - Sistemes Electrònics de Potència i de Control
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorChiesa, M.; Gadelrab,, K.; Stefancich, M.; Armstrong, P.; Li, G.; Souier, T.; Thomson, N.; Barcons, V.; Font, J.; Verdaguer, A.; Phillips, M.; Santos, S.
upcommons.citation.publicationNameJournal of Physical Chemistry Letters

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