NanoteQ
CryoMagLab

The CryoMagLab provides high static fields at cryogenic temps. This general purpose facility is used for transport and thermodynamic studies of exotic materials systems.

 

Lab Manager: carroldl@wfu.edu

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Building Our New Capabilities​

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1. Janis Research 16 CNDT-SVT

is a high-efficiency SuperVariTemp (SVT) variable temperature cryostat and liquid helium (LHe) Dewar system. It is primarily used in advanced laboratory research for materials science and physics. 

Key Technical Specifications

• Operating Range: Primarily 1.5 K to 300 K.

• Cooling Method: Uses flowing helium vapor to simultaneously cool the sample and holder, eliminating the need for thermal anchoring.

• Efficiency: Typically adds only 0.1 L/hr to the total liquid helium evaporation rate.

• Sample Access: Features a top-loading design for quick sample exchange.

• Sub-4.2 K Operation: Capable of operating below 4.2 K without pumping on the main reservoir by throttling helium flow into the sample tube

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2. Dilution Refrigerator DR39394

Based on an Oxford Instruments Model 1000 with a 6T magnet insert and a Precision Cryogenics Dewar and reclaim system.

Key Technical Specifications:

• Operating Temp. Range < 2mK

• Cooling power 250 microW at 100 mK

• Sample access is top loaded

• Hold Time at Base Temperature 60 Hours

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3. He3 fridge 

Precision Cryogenics Dewar, 6T magnet insert, CIA design.

Key Technical Specifications:

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• Helium-3 Sample in Vacuum

• Base Temperature 260 mK

• Cooling Power at 300 mK 60 microW

• Hold Time at Base Temperature 60 Hours

• Experimental Access top load

• Charcoal Cooling Method Both dynamic and static exchange gas

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​4.  He4 top load fridge

Precision Cryogenics system with Oxford style probe

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• Base Temp 2.4 K