VT STM

Piezoelectric scanner:

Scanning range X/Y/Z:

15 µm x 15µm x 1.5 µm

Stroke X/Y/Z:

10 mm x 10 mm x 10 mm

Z resolution:

< 10 pm

Tunnel current:

< 1pA – 300 nA, Tunnel current noise: 0.2 pA RMS

Polarization voltage: 

± 5 mV to ± 10 V applied to the tip, sample to ground.

Operating temperature range of the microscope stage:

With the liquid He cryostat:
25 K - RT (Room Temperature) with sample holders for cooling.
100K - RT with liquid nitrogen and sample holders for cooling.
45 K - 1500 K with sample holders for direct current heating.

Sample preparation:

Studies can be carried out on all types of conductive or semiconductor samples.

Sample preparation constraints:

Maximum size 7mm x7mm, thickness < 6mm

Working environment:

Ultra-high vacuum

Accessibility:

Self-service after training by the technical manager. The constraints related to ultra-high vacuum and sample preparation mean that the handling time allocated to each applicant is 3 consecutive weeks, renewable according to the availability of the instrument.