Theory of phase spectroscopy in bimodal atomic force microscopy

  title={Theory of phase spectroscopy in bimodal atomic force microscopy},
  author={J Rodr{\'i}guez Lozano and Ricardo Garcia},
We develop a theoretical formalism to describe bimodal atomic force microscopy AFM experiments. The theory relates observables such as amplitudes and phase shifts to physical properties of the tip-surface interaction. The theory is compatible with point-mass and continuous models of the cantilever-tip system. We explain the ability of the bimodal AFM to map compositional variations under the influence of very small conservative forces. This is achieved by representing the dependence of the… CONTINUE READING


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