Show simple item record

dc.contributor.authorHoffmann P.M.en_US
dc.contributor.authorJeffery, S.en_US
dc.contributor.authorOral, Ahmeten_US
dc.contributor.authorGrimble, R.A.en_US
dc.contributor.authorÖzer, Özgür H.en_US
dc.contributor.authorPethica J.B.en_US
dc.date.accessioned2016-02-08T11:58:07Z
dc.date.available2016-02-08T11:58:07Z
dc.date.issued2001en_US
dc.identifier.issn02729172
dc.identifier.urihttp://hdl.handle.net/11693/27622
dc.description.abstractA new type of AFM is presented which allows for direct measurements of nanomechanical properties in ultra-high vacuum and liquid environments. The AFM is also capable to atomic-scale imaging of force gradients. This is achieved by vibrating a stiff lever at very small amplitudes of less than 1 Å (peak-to-peak) at a sub-resonance amplitude. This linearizes the measurement and makes the interpretation of the data straight-forward. At the atomic scale, interaction force gradients are measured which are consistent with the observation of single atomic bonds. Also, atomic scale damping is observed which rapidly rises with the tip-sample separation. A mechanism is proposed to explain this damping in terms of atomic relaxation in the tip. We also present recent results in water where we were able to measure the mechanical response due to the molecular ordering of water close to an atomically flat surface.en_US
dc.language.isoEnglishen_US
dc.source.titleMaterials Research Society Symposium - Proceedingsen_US
dc.subjectChemical bondsen_US
dc.subjectDampingen_US
dc.subjectNanostructured materialsen_US
dc.subjectRelaxation processesen_US
dc.subjectStiffnessen_US
dc.subjectVibrations (mechanical)en_US
dc.subjectAtomic relaxationen_US
dc.subjectAtomic scale imagingen_US
dc.subjectNanomechanicsen_US
dc.subjectAtomic force microscopyen_US
dc.titleNanomechanics using an ultra-small amplitude AFMen_US
dc.typeConference Paperen_US
dc.departmentDepartment of Physics
dc.citation.spageQ9.2.1en_US
dc.citation.epageQ9.2.6en_US
dc.citation.volumeNumber649en_US
dc.identifier.doihttps://doi.org/10.1557/PROC-649-Q9.2


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record