Improved AC quantized Hall measurements

Improved AC quantized Hall measurements

AC quantized Hall resistance (QHR) measurements have been performed with an improved probe and sample mounting system. We describe investigations of the structure of the R/sub H/ plateau for a range of sample currents and temperatures, and for different wiring configurations. We have observed R/sub...

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Veröffentlicht in:IEEE transactions on instrumentation and measurement 1999-04, Vol.48 (2), p.305-308, Article 305
Hauptverfasser: Wood, B.M., Inglis, A.D., Cote, M., Young, R.B.
Format: Artikel
Sprache:eng
Schlagworte:
Alternating current
Coaxial components
Conductors
Electrical resistance measurement
Halls
Impedance
Instrumentation
Lead
Minima
Mounting
Printed circuits
Probes
Temperature distribution
Thermal conductivity
Wiring
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Zusammenfassung:AC quantized Hall resistance (QHR) measurements have been performed with an improved probe and sample mounting system. We describe investigations of the structure of the R/sub H/ plateau for a range of sample currents and temperatures, and for different wiring configurations. We have observed R/sub xx/ minima smaller than 0.02/spl times/10/sup -6/ of R/sub H/, an order of magnitude smaller than most published values.
ISSN:0018-9456
1557-9662
DOI:10.1109/19.769589