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Dynamics of a vibrating tip near or in intermittent contact with a surface

AuthorsGarcía García, Ricardo ; San Paulo, Álvaro
Issue Date15-May-2000
PublisherAmerican Physical Society
CitationPhysical Review B 61, R13381–R13384 (2000)
AbstractWe discuss the stability of the tip motion in dynamic atomic force microscopy. A nonlinear dynamics analysis shows that the tip's phase space is divided in two basins of attraction. A phase space diagram dominated by either basin of attraction implies a stable motion while a substantial contribution from both basins is associated with instabilities. Because the dominance of a given basin of attraction depends on the tip-surface interaction potential and separation, stable and unstable motions are intrinsic features of an oscillating tip near or in intermittent contact with a surface.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.61.R13381
Appears in Collections:(IMN-CNM) Artículos
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