Scanning Probe Microscopy, AFM and STM

We have several AFM/STM microscopes allowing for surface characterizations in air or controlled environment (inert gaz, solution).

Specific skills of the group:

• in situ characterization/monitoring of chemical and/or electrochemical processes at solid/solution interfaces
• Magnetic imaging (MFM)
• Tip induced patterning (local etching/deposit)   

Main technical features

3 commercial AFM :

Molecular Imaging PicoSPM,  Agilent 5500 Pico SPM,  Agilent 3000 Pico SPM

• Contact or oscillating (AC mode) imaging mode
• Environmental chamber (inert atm)
• Open cells for imaging in solution/liquid
• Optical camera for positioning
• X, Y sample translation
• 2 types of scanners:

1. Large scanning range (90 µm x 90 µm) with max. vertical range of  8 µm
2. Small scanning range (10 µm x 10 µm) with max. vertical range of 2 µm

Home-made STM

• Imaging at constant current or height
• Fast imaging