Variable temperature Hall measurements are extremely important when investigating the electronic transport properties of materials. Materials of interest for solar cell applications are typically characterized by very small charge carrier mobilities that are difficult, if not impossible to measure using traditional DC field techniques1-3. For these materials special techniques like AC field Hall are required to reliably measure the small Hall voltages and low mobilities.
J. Lindemuth, J. Lindemuth,
"Variable temperature Hall measurements on low-mobility materials", Proc. SPIE 8470, Thin Film Solar Technology IV, 84700G (10 October 2012); doi: 10.1117/12.929655; https://doi.org/10.1117/12.929655