Offset reduction in Hall effect measurements using a nonswitching van der Pauw technique

O. Riss*, E. Shaked, M. Karpovsky, A. Gerber

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A nonswitching van der Pauw technique, which uses two electrically isolated alternating current sources operating at two different frequencies and two lock-in amplifiers, is suggested for Hall effect measurements. Parasitic offset voltage, typical for this type of measurements, is reduced by averaging two sets of data accumulated simultaneously. Application of the technique is particularly useful when the offset changes on a time scale comparable to the measurement cycle.

Original languageEnglish
Article number073901
JournalReview of Scientific Instruments
Volume79
Issue number7
DOIs
StatePublished - 2008

Funding

FundersFunder number
Air Force Office of Scientific Research
Air Force Materiel Command
U.S. Air ForceFA8655-07-1-3001
Israel Science Foundation633/06

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