Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-03-25
Metrologia, vol. 46, 2009, p. R1-R11
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
26 pages, 8 figures
Scientific paper
10.1088/0026-1394/46/5/R01
In view of the progress achieved in the field of the ac quantum Hall effect, the Working Group of the Comite Consultatif d'Electricite et Magnetisme (CCEM) on the AC Quantum Hall Effect asked the authors of this paper to write a compendium which integrates their experiences with ac measurements of the quantum Hall resistance. In addition to the important early work performed at the Bureau International des Poids et Mesures and the National Physical Laboratory, UK, further experience has been gained during a collaboration of the authors' institutes NRC, METAS, and PTB, and excellent agreement between the results of different national metrology institutes has been achieved. This compendium summarizes the present state of the authors' knowledge and reviews the experiences, tests and precautions that the authors have employed to achieve accurate measurements of the ac quantum Hall effect. This work shows how the ac quantum Hall effect can be reliably used as a quantum standard of ac resistance having a relative uncertainty of a few parts in 10^8.
Ahlers Franz J.
Jeanneret B.
Overney F.
Schurr J.
Wood Marion B.
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