Two commercial dilution cryostat systems (producer Oxford Instr.) are presently used for measurements on mesoscopic structures in the millikelvin temperature range.
Dilution Cryostat KELVINOX ATS Minisorp
Specs:
- Cooling power 50 µW at T = 100 mK
- Base temperature about 20 mK
- Magnetic field 2 T (superconducting solenoid magnet)
Advantages:
- Fast sample changing (turn around time about 12 h)
- Low vibrations due to sorption pumps
- Flexible due to many well-filtered leads
Disadvantage:
- Small usable volume