Shared Facilities

FUNCTION:
The Charge Transport Laboratory includes equipment to perform variable temperature DC electrical conductivity and Hall measurements (mobility and carrier concentration), from 4.2 K to 340 K using a computer automated four- and five-probe technique, respectively.
Typical samples can range from thin films to single crystals, with specimens mounted on interchangeable sample holders. Hall measurements are made […]

FUNCTION:
This facility maintains various magnet and cryogenic systems operating either separately or together. The systems are designed to be as flexible as possible, and to allow several types of measurements to be performed over a wide range in magnetic field, temperature, and probe frequency. The types of measurements that are routinely performed include magnetization and […]

The Low-Temperature Laboratory operates a CTI1400 helium liquefier and maintains a Linde TL6000 liquid nitrogen tank of 24,000 liter capacity, a recovery system for helium, and centralized pumping stations for cryogenic experiments. Cryogenic liquids are sold to MRSEC members and non-members to recover production and storage costs. The lab oversees the use of a Quantum Design SQUID magnetometer and a top-loading dilution refrigerator, and makes available leak detectors to MRSEC members. The staff designs and constructs equipment (gas handling systems, cryogenic liquid fill devices & transfer tubes, and custom racks for experiments), provides technical consulting and instructs students in cryogenic techniques.