Friction at Atomic-Scale Surface Steps: Experiment and Theory

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dc.creatorHolscher, Hendrik
dc.creatorEbeling, Daniel
dc.creatorSchwarz, Udo D.
dc.date2008-10-01
dc.date.accessioned2026-07-07T10:06:41Z
dc.date.available2026-07-07T10:06:41Z
dc.descriptionExperiments performed by friction force microscopy at atomic-scale surface steps on graphite, MoS$_2$, and NaCl in ambient conditions are presented. Both step-down and step-up scans exhibit higher frictional forces at the edge, but distinguish in their load dependence: While the additional frictional force due to the step edge increases linearly with load if the tip has to jump a step up, it remains constant for downward jumps. This phenomena represents a universal effect that can be explained in terms of a modified Prandtl-Tomlinson model featuring a Schoebel-Ehrlich barrier at steps.
dc.identifierhttps://arxiv.org/abs/0810.0165
dc.identifierhttp://arxiv.org/abs/0810.0165
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170407
dc.subjectOther Condensed Matter
dc.titleFriction at Atomic-Scale Surface Steps: Experiment and Theory
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