Title :
Four-port AC quantized Hall resistance measurements
Author :
Ricketts, Brian W. ; Fiander, John R. ; Johnson, H. Leigh ; Small, Greig W.
Author_Institution :
CSIRO Nat. Meas. Lab., Lindfield, Australia
fDate :
4/1/2003 12:00:00 AM
Abstract :
We report four-port measurements of quantized Hall resistances (QHRs) over the frequency range of 200 Hz to 2000 kHz. The importance of capacitive current flow from the conducting layer of the QHR device is illustrated by effectively reversing the polarity of the potentials of a split guard layer in close proximity to the QHR device. The frequency dependence of the current coefficients of the quantized Hall resistances have been investigated.
Keywords :
Hall effect devices; electric current; electric resistance measurement; measurement standards; quantum Hall effect; 200 Hz to 2000 kHz; QHR device conducting layer; capacitive current flow; current coefficients; four-port AC quantized Hall resistance measurements; frequency dependence; frequency range; quantized Hall resistances; split guard layer potential polarity reversal; Bridge circuits; Capacitors; Coaxial cables; Current measurement; Electrical resistance measurement; Frequency measurement; Impedance measurement; Joining processes; Probes; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2003.810016
