Does Hall Effect Exists in Superconductors?

This normal Hall effect has the voltage pointing in a specific direction that depends on the orientation of the field and current. Interestingly, when materials become superconductors, the sign of the Hall voltage reverses. The 'positive' end of the material becomes the 'negative' end.

Do insulators show Hall effect?

However, recent theoretical studies have pointed out that spins in insulators can show a similar Hall effect in magnetic fields, garnering attention among scientists. Spins do not carry electricity, but they can transport heat so the phenomenon is observed as a thermal Hall effect.

What is possible with superconductors?

powerful superconducting electromagnets used in maglev trains, magnetic resonance imaging (MRI) and nuclear magnetic resonance (NMR) machines, magnetic confinement fusion reactors (e.g. tokamaks), and the beam-steering and focusing magnets used in particle accelerators. ...