Selection of magnetic fields for magneto-transport experiments

Magnetic field dependent Hall and resistivity measurements can provide information about the mobilities and carrier concentrations of multiple carriers contributing to conductivity. Typically this involves taking measurements at a series of magnetic field values in an attempt to simulate the whole magnetic field range. A Monte Carlo technique is used to examine the relationship between the error in the measurements and the uncertainty in the extracted mobility. Conclusions are drawn regarding the number and placement of magnetic fields at which measurements should be taken to minimise errors in the extracted mobilities, and the fundamental limitations that these choices place on the results obtained from the analysis of the data.