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O: Fachverband Oberflächenphysik

O 68: Poster: Scanning Probe Techniques: Method Development

O 68.6: Poster

Mittwoch, 20. März 2024, 18:00–20:00, Poster C

High-resolution characterization of single-step motion in piezoelectric friction-inertia walkers — •Felix Huber, Susanne Baumann, and Sebastian Loth — University of Stuttgart, Institute for Functional Matter and Quantum Technologies, Stuttgart, Germany

High precision positioners are a prerequisite for the realization and automation of cutting edge research experiments. Piezoelectric friction-inertia walkers offer the combination of high accuracy movement on the millimeter scale with a resolution on the nanometer scale and are essential for scanning probe microscopy (SPM) applications. The behavior and reliability of nanopositioners based on the friction-inertia principle strongly depends on the respective use of contact surface materials.

Here, we use optical interferometry to monitor the single step motion of a linear piezoelectric friction-inertia walker on the nanometer scale. We test different combinations of metallic and ceramic contact surface materials as well as contact surface geometries and identify material combinations that offer large step sizes or reliable single-step motion which can be implemented easily in home-built SPM setups.

Keywords: Nanopositioner; piezoelectric walker