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Orientation dependent molecular friction on organic layer compound crystals

Fessler, Gregor and Zimmermann, Iwan and Glatzel, Thilo and Gnecco, Enrico and Steiner, Pascal and Roth, Raphael and Keene, Tony D. and Liu, Shi-Xia and Decurtins, Silvio and Meyer, Ernst. (2011) Orientation dependent molecular friction on organic layer compound crystals. Applied physics letters, Vol. 98, H. 8 , 083119.

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Official URL: http://edoc.unibas.ch/dok/A6001653

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Abstract

High resolution friction force maps of the benzylammonium terminated crystalline surface of a layer compound are presented. The lateral force map acquired with an atomic force microscope, reveals a significant contrast between different molecular orientations yielding molecular rows which differ from their neighboring ones. The single crystals are formed by stacks of copper oxalate sheets sandwiched between stereoregular organic cations, resulting in highly organized surface structures. Single molecular defects are observed at small loads. The experimental results are compared with numerical calculations which indicate a transition from an unperturbed state at small loads to a distorted state at higher loads. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3559227]
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik
05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0003-6951
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:11 Oct 2012 15:31
Deposited On:11 Oct 2012 15:21

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