Hall voltage measurements using ac lock-in detection

1991/03/01 by Leandro R. Tessler, Meir Nissim, Uri Dai +2
Physics and Astronomy · Engineering · #Atomic and Subatomic Physics Research #Quantum and electron transport phenomena #Magnetic Field Sensors Techniques

paper · doi:10.1063/1.1142517

Abstract

The measurement of the Hall constant in insulating highly resistive films is a difficult and challenging task. Owing to the small currents that may be passed through the insulating films, the Hall voltages are often very small in magnitude. A simple electronic circuit using commercial lock-in amplifiers is described which allows measuring these minute Hall voltages. Other practical measuring suggestions are also presented.

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