Abstract The Quantum Hall effect (QHE), a macroscopic effect of solid state physics, provides
a universal representation of the unit of resistance which depends on the elementary charge …

This paper reviews the recent evolution of the measurement techniques in the area of
impedance measurement from the Wheatstone bridge to the most advanced Josephson …

By fixing two fundamental constants from quantum mechanics, the Planck constant h and the
elementary charge e, the revised “Système international”(SI) of units endorses explicitly …

This paper describes the principle of a new fully automated digitally assisted coaxial bridge
having a large bandwidth ranging from 60 Hz to 50 kHz. The performance of the bridge is …

In view of the progress achieved in the field of the alternating current (ac) quantum Hall
effect (QHE), the Working Group of the Comité Consultatif d'Électricité et Magnétisme …

In this paper, we describe ac and dc quantum Hall effect measurements at temperatures
above 1.5 K, which is beyond the commonly used value for high precision measurements of …

L'avènement des constantes fondamentales RK (von Klitzing) et KJ (Josephson) dans la
métrologie électrique et le développement considérable des nanotechnologies ont …

Since 1990, the quantum Hall resistance measured with direct current (dc) has been
established to represent and maintain the dc resistance unit and thereby has replaced the …

This paper describes the measurements of the ac quantum Hall effect (QHE) in epitaxial
graphene in a set of six different devices. In typical graphene devices, capacitive losses …

We describe a novel double-shield configuration applied to ac quantum Hall devices which
is a very significant advance in that it eliminates the effect of all presently known ac losses …