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

Volume

54

Issue

2

fYear

2005

fDate

4/1/2005 12:00:00 AM

Firstpage

658

Lastpage

661

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;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2004.843125

Filename

1408257