Superconductor Critical Temperature (Tc) Experiment setup (upgraded)

Measure the Critical Temperature of a Superconductor — Now With Better Thermal Control and Magnetic Field Capability

Measure the critical temperature (Tc) of a high-Tc superconductor with this easy-to-use intuitive and educational kit.

The upgraded kit gives students a clearer, more reliable, and more advanced way to study superconductivity. With improved temperature control and a new magnetic coil, students can now measure the critical temperature of a superconductor with greater precision — and explore how that critical temperature changes in an external magnetic field.

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This is a hands-on superconductivity experiment designed for teaching labs, physics classrooms, universities, and advanced science programs. It brings a powerful condensed-matter physics experiment into the classroom without the need for complicated or expensive research equipment.

The setup includes a high-Tc superconductor, either Bi-2223 or YBCO bar, with four contact points. Four wires are physically attached to the superconductor allowing both a 4-wire and 2-wire resistance measurements. The superconductor sits on metallic plate that serves as a thermal equalizer and includes a pt-100 resistance thermometer.

The kit includes a liquid nitrogen Dewar (0.5L) and three vessels placed one inside the other. The innermost vessel holds a small puddle of liquid nitrogen, while the superconductor sits floating above the liquid nitrogen rather than being submerged directly in it.

This experiment requires an external power supply + two voltage/resistance meters.