UHV Cryogen Free High Field Modular Compact Scanning Tunneling Microscope

Our home built Ultra High Vacuum  Low Temperature- Cryogen-Free modular compact STM operates at temperatures down to 4K and magnetic fields up to 9 Tesla. It is equipped with coarse  XYZ motors  providing a scanning range of several mm and with a fine motor for zooming in to sub-atomic length scales. The patented pluggable STM head can be interchanged, without breaking vacuum, between a room temperature station and the low temperature one.  The unit is equipped with a prep chamber for film deposition, ion etching, tip conditioning, and sample exfoliation all under the same vacuum.



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Cryogen free Cryostat



Angela  loading  sample into the cryostat.

Guohong, Eva and Angela posing with the STM.