Hall Effect Measurements are Essential for Characterizing High Carrier Mobility in Materials

The Hall effect can be observed when the combination of a magnetic field through a sample and a current along the length of the sample create an electrical current perpendicular to both the magnetic field and the current, which in turn creates a transverse voltage perpendicular to both the field and the current. The underlying principle is the Lorentz force: the force on a point charge due to electromagnetic fields.