TITLE

Size dependence of microscopic Hall sensor detection limits

AUTHOR(S)
Vervaeke, K.; Simoen, E.; Borghs, G.; Moshchalkov, V. V.
PUB. DATE
July 2009
SOURCE
Review of Scientific Instruments;Jul2009, Vol. 80 Issue 7, p074701
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this paper the magnetic field detection limits of microscopic Hall sensors are investigated as a function of their lateral size. Hall sensors fabricated from GaAs/AlGaAs heterostructures and silicon are experimentally investigated at different temperatures using Hall effect and noise spectrum measurements. At room temperature a clear size dependence of the detection limit is observed, whereas at low temperatures this dependence is found to disappear. The results are explained using the theory of noise in semiconductors.
ACCESSION #
43494151

 

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