Physics – Atomic and Molecular Clusters
Scientific paper
2005-10-11
Applied Physics 91 (4) (2002) 2537-2543
Physics
Atomic and Molecular Clusters
Scientific paper
10.1063/1.1428084
This paper is a theoretical and a numerical investigation of the stability of a tip-cantilever system used in Non-Contact Atomic Force Microscopy (NC-AFM) when it oscillates close to a surface. No additional dissipative force is considered. The theoretical approach is based on a variationnal method exploiting a coarse grained operation that gives the temporal dependence of the nonlinear coupled equations of motion in amplitude and phase of the oscillator. Stability criterions for the resonance peak are deduced and predict a stable behavior of the oscillator in the vicinity of the resonance. The numerical approach is based on results obtained with a virtual NC-AFM developped in our group. The effect of the size of the stable domain in phase is investigated. These results are in particularly good agreement with the theoretical predictions. Also they show the influence of the phase shifter in the feedback loop and the way it can affect the damping signal.
Aimé Jean-Pierre
Boisgard Rodolphe
Couturier Gérard
Nony Laurent
No associations
LandOfFree
Stability of an oscillating tip in Non-Contact Atomic Force Microscopy: theoretical and numerical investigations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Stability of an oscillating tip in Non-Contact Atomic Force Microscopy: theoretical and numerical investigations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stability of an oscillating tip in Non-Contact Atomic Force Microscopy: theoretical and numerical investigations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-48869