Compact STM, Scanning Tunneling Microscope

Function and Applications

Easy to use scanning tunneling microscope to image conducting surfaces and to investigate effects and characteristics on atomic and molecular scale. A variety of experiments in the fields of Material Sciences, Solid State Physics/Chemistry, Nanotechnology and Quantum Mechanics can be performed.

Equipment and Technical Data

• Scan head with integrated control-unit on vibration-isolated experimentation board:
• • Maximum scan range (XY) 500 nm x 500 nm
  • Maximum Z-range 200 nm
  • Resolution in XY better than 8 pm
  • Resolution in Z better than 4 pm
  • Current 0.1-100 nA in 25 pA steps
  • Tip voltage +/-10 V in 5 mV steps
  • Dimensions 21 cm x 21 cm x 10 cm
  • Constant-Current Mode
  • Constant-Height Mode
  • Current-Voltage Spectroscopy
  • Current-Distant Spectroscopy
  • Control-Unit with USB socket, 16-Bit
  • DA converter for all three dimensions, up to 7 measurement channels, and maximum scanning speed of 60 ms/line
  • Imaging speed: up to 10 Hz
  • Lithography mode: patterning, modification
  • Sample size: max. 3 mm thickness
  • Data points in spectroscopy mode: up to 65535
• Scan head cover with magnifying lense: 10 x
• Toolset for preparing and mounting tunneling tips: side-cutter, tong and tweezers
• Pt-Ir wire for tunneling tips: length 30 cm, diameter 0.25 mm
• Sample kit: Graphite (HOPG), Gold (111) films, and 4 spare sample supports
• Power supply (100-240 V, 50/60 Hz), USB cable
• Transport case for the instrument and all accessories
• Software for measuring, analysing and visualisation (one, two, and three dimensions)
• Interactive teaching software
• Handbook incl. short description of  experiments
• Weight (incl. case) 6.7 kg