Cryogen-free variable temperature scanning tunneling microscope in ultrahigh vacuum

(home-made, Chinese Patent of Invention: ZL201410091094.8; RSI 87,063701(2016))


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  • left: overview of the system
  • middle: closeup of the STM
  • right: National invention patent certificate

Cryogen-free low temperature ultrafast spin-polarized scanning tunneling microscope housed

in a room-temperature-bore vector superconducting magnet (home-made & patented)



Ultrafast nano-optics characterization system


  • left: tunable femtosecond laser system (spectra physics)
  • middle: variable temperature laser scanning optical microscope (home-made)
  • right: ambient sample-scanning confocal scanning optical microscope (custom-made)

Cryogen-free high magnetic field variable temperature optical microscope (home-made)


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  • left:7 T-2 T-2 T system
  • middle:Out-of-plane 9 T system
  • right:Out-of-plane 6 T system

Cryogen-free variable temperature optical cryostat (home-made)



MBE system for growing low dimensional quantum materials (home-made)



Glovebox-E-Beam deposition-AFM system for sample preparation


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wire bonder for wiring up electronic devices (West Bond)



optical microscope for dry transfer of 2D materials



various ovens for sample growth and treatment



plasma cleaner and UV ozone cleaner for sample preparation


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shared equipments and facilities