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High-speed atomic force microscopy for large scan sizes using small cantilevers.

Christoph Braunsmann1, Tilman E Schäffer

  • 1Institute of Applied Physics, University of Erlangen-Nuremberg, Erlangen, Germany.

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Summary
This summary is machine-generated.

A new high-speed atomic force microscope offers practical advantages for imaging. It achieves high image rates and velocities, enabling detailed surface analysis at molecular and atomic scales.

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Area of Science:

  • Physics
  • Materials Science
  • Nanotechnology

Background:

  • Atomic Force Microscopy (AFM) is a powerful tool for surface imaging.
  • Previous AFM designs faced limitations in speed and scan size.
  • There is a need for faster and more versatile AFM systems.

Purpose of the Study:

  • To introduce a novel high-speed atomic force microscope.
  • To demonstrate its practical advantages over existing AFM systems.
  • To showcase its capability for high-resolution imaging across various scales.

Main Methods:

  • Development of a high-speed scanner with a modular design.
  • Utilizing small cantilevers for enhanced imaging rates.
  • Implementing z-feedback control for stable imaging.
  • Imaging collagen fibrils, calcite surfaces, and mica surfaces.

Main Results:

  • Achieved image rates of up to 46 images/s in air and 13 images/s in liquid.
  • Reached sample velocities of 8.8 mm/s (xy) and 11 mm/s (z) during large scan imaging.
  • Demonstrated molecular and atomic scale imaging of calcite step dynamics and mica lattice.
  • Modular scanner design allows easy exchange of x- and y-piezos for optimized imaging.

Conclusions:

  • The presented high-speed AFM offers significant practical advantages.
  • Its design enables high-speed, high-resolution imaging in both air and liquid.
  • The system is versatile for investigations from molecular to atomic scales.