Physical Property Measurement System

The vendor is required to provide physical properties measurement system must meet the following requirements:
•    Measurement temperature range: 2-300 k
•    Applied magnetic fields ≥ 8 t
•    Measurement capabilities of:
o    AC electrical conductivity
o    DC electrical conductivity
o    Heat capacity
o    thermal conductivity
o    See-beck coefficient
o    Magnetic susceptibility
o    Thermal expansion
- Preferred specifications
•    Measurement temperature range: 1.8 – 400 k 
•    Applied magnetic fields ≥ 9 t 3.3. cryogen-free and requires no liquid helium needed for operation. 
•    No needle valves. 
•    There is no need to make any manual adjustment or recalibration of the system control after system cool-down. 
•    A system with integrated cryopump design and automated cool-down procedure that eliminates the need for an external high vacuum pumping station. 
•    Measurement routines without user intervention and without system adjustment that can cool sample from 400 k to 2.0 k and stabilize to better than 0.001 k within 45 minutes. 
•    The system can hold stability at 1.9 k +/- 0.001 k for ~120 minutes. 
•    DC relaxation measurement of heat capacity (not ac, adiabatic or semi-adiabatic) because ac or adiabatic techniques are not capable of absolute heat capacity measurements. 
•    A standby mode that conserves power while requiring only a short recovery time.

- Contract Period/Term: 2 years