A method of measuring the resistivity and hall coefficient on Lamellae of arbitrary shape

Abstract

Resistivity and Hall-coefficient measurements are normally carried out on samples shaped such that the current stream-lines run parallel or virtually parallel. It is shown that these measurements can also be made on arbitrarily shaped lamellae in which the stream-line pattern is not at all uniform. On the periphery of the lamella, four contacts are made at arbitrary positions. The resistivity and the Hall coefficient are derived from two measurements, whereby the potential difference between a pair of contacts is determined per unit current through the other pair.