Dynamic behaviour of exponentially shaped tips for scanned probe methods

W. Hanrieder, R. Mock, H. Meixner

Research output: Contribution to journalArticle

Abstract

To examine specimen surfaces with large local height differences special care must be devoted to the tip preparation. The objective is then the macroscopic generation of ultra‐thin probe tips. Here, the question arises of the mechanical (in)stability of these ultra‐thin tips and any consequent disturbances on the mapping. To give quantitative answers to these questions a 3D finite element model of a real ultra‐thin scanning probe tip is set up, a modal analysis is performed to get information about possible modes of oscillation and their resonant frequencies, and the harmonic response is calculated to estimate the effect of these oscillations on the mapping. In addition, the static deflection of the tip is calculated in response to a given force perpendicular to the tip axis. The shape dependence of the tip oscillations and of the spring constants and the dependence of these parameters on material constants are also investigated in detail.

Original languageEnglish
Pages (from-to)109-116
Number of pages8
Journalphysica status solidi (a)
Volume131
Issue number1
DOIs
Publication statusPublished - 1992

Fingerprint

Modal analysis
Natural frequencies
Scanning
oscillations
probes
resonant frequencies
deflection
disturbances
harmonics
preparation
scanning
estimates

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Dynamic behaviour of exponentially shaped tips for scanned probe methods. / Hanrieder, W.; Mock, R.; Meixner, H.

In: physica status solidi (a), Vol. 131, No. 1, 1992, p. 109-116.

Research output: Contribution to journalArticle

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