Our "workhorse" is an Omicron VT-UHV-STM 50 K, which has been (and still is being) modified and optimized in our group for years. It is our original self-developed scanning thermal microscope (SThM) based on the commercial device. 

Pressure Range: 

• Prep chamber: Atmospheric pressure down to 10^-8 hPa
• Main chamber: down to 10^-10 hPa

Sample Temperature Range: 

• LN₂: down to 100 K
• LHe: down to 50 K
• Direct sample heating: up to 650 K

Equipment:

• Prep chamber:
  • argon ion sputter
  • sample heater
  • (inactive) thermal effusion cell
• Main Chamber:
  • sample heater
  • (inactive) Auger-Electron spectrometer
  • scanning tunneling-/ scanning thermal microscope