Electronic Hall Effect in Diamond

Abstract

A method for measuring the Hall mobility in insulating photoconductors is described which avoids the space-charge difficulties present in previous measurements. Unconventional electrodes are used, and the method differs from the conventional one in several other ways. It is a transient method, and the electric field in the sample is rotated by the external electrodes, rather than by the electrons under study. The direction of charge flow is deduced from a current measurement, rather than by confining the current to a thin sample whose orientation gives the direction of charge flow. No attempt is made to inject or eject electrons through the surface of the sample.