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Measuring sliding friction at the atomic scale

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Weymouth, Alfred J. ; Gretz, Oliver ; Riegel, Elisabeth ; Giessibl, Franz J.
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Date of publication of this fulltext: 06 Dec 2022 13:50


Sliding friction is a nonconservative force in which kinetic energy is dissipated via various phenomena. We used lateral force microscopy to measure the energy loss as a tip oscillates laterally above a surface with sub-Angstrom amplitudes. By terminating the tip with a single molecule, we ensure the tip ends in a single atom. We have reported that energy is dissipated as a CO molecule at the tip ...


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