Title :
Influence of the dissipation in AC measurements of the quantized Hall resistance
Author :
Overney, Frédðric ; Jeanneret, Blaise ; Wood, Barry M. ; Schurr, Jürgen
Author_Institution :
Swiss Fed. Office of Metrol. & Accreditation, Bern, Switzerland
fDate :
4/1/2005 12:00:00 AM
Abstract :
A systematic investigation of the current and frequency dependence of the quantum Hall resistance (QHR) and of the longitudinal resistivity has been carried out at low temperature at the center of the plateau i=2. The deviation of the QHR from the von Klitzing constant is found to be proportional to the longitudinal resistivity and extrapolates to zero, within the measurement uncertainty, when the dissipation in the two-dimensional electron gas vanishes.
Keywords :
electric resistance measurement; measurement uncertainty; quantum Hall effect; two-dimensional electron gas; 2D electron gas; ac measurements; ac quantum Hall effect; ac resistance; current dependence; frequency dependence; longitudinal resistivity; measurement uncertainty; quantized Hall resistance; von Klitzing constant; Accreditation; Conductivity; Current measurement; Electrical resistance measurement; Electrons; Frequency dependence; Frequency measurement; Hall effect; Laboratories; Metrology; AC quantum Hall effect; ac resistance; dissipation; metrology;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2004.843125
