Equipment/Instrumentation

UHV VT AFM

 

UHV VT AFM

Scan range

  • 10 μm x 10 μm x 1.5 μm

Z – resolution 0.01 nm

  • 01 nm

Tunneling current:

  • < 1pA – 330 nA

Gap voltage

  • ± 5 mV to ± 10 V; applied to tip/cantilever, sample grounded

Vacuum achievable:

  • 10-11 mbar or better

Sample size

  • 3mm x 9mm 7mm diameter

Temp range

  • 100K – 1500 K

Imaging modes

  • Contact, tapping, and FM noncontact

Accessories

  • LEED, Auger electron spectroscopy
  • Evaporator, leak valves for controlled gas environment, sputter gun

Controller

  • 20-bit, <25μV noise @ 60kHz up to 24 data acquisition signals

Applications: Atomically-resolved imaging of surfaces. Surface reconstruction. Friction and adhesion measurements. Surface potential and conductive AFM. Scanning Gate Microscopy. Scanning Kelvin Probe + Local dielectric AFM.

UHV VT AFM