97 citations · 223 across the 9 of their papers we have counts for
9 papers
Practical quantum realization of the ampere from the electron charge
J. Brun-Picard, S. Djordjevic, D. Leprat +2
One major change of the future revision of the International System of Units (SI) is a new definition of the ampere based on the elementary charge \emph{e}. Replacing the former de…
Graphene surpasses GaAs/AlGaAs for the application of the quantum Hall effect in metrology
R. Ribeiro-Palau, F. Lafont, J. Brun-Picard +8
The quantum Hall effect (QHE) theoretically provides a universal standard of electrical resistance in terms of the Planck constant and the electron charge . In graphene, the…
Quantum Hall resistance standards from graphene grown by chemical vapor deposition on silicon carbide
F. Lafont, R. Ribeiro-Palau, D. Kazazis +9
Replacing GaAs by graphene to realize more practical quantum Hall resistance standards (QHRS), accurate to within in relative value, but operating at lower magnetic field…
Anomalous dissipation mechanism and Hall quantization limit in polycrystalline graphene grown by chemical vapor deposition
F. Lafont, R. Ribeiro-Palau, Z. Han +8
We report on the observation of strong backscattering of charge carriers in the quantum Hall regime of polycrystalline graphene grown by chemical vapor deposition, which alters the…
High Electron Mobility in Epitaxial Graphene on 4H-SiC(0001) via post-growth annealing under hydrogen
E. Pallecchi, F. Lafont, V. Cavaliere +4
We investigate the magneto-transport properties of epitaxial graphene single-layer on 4H-SiC(0001), grown by atmospheric pressure graphitization in Ar, followed by H2 intercalation…
A programmable quantum current standard from the Josephson and the quantum Hall effects
W. Poirier, F. Lafont, S. Djordjevic +2
We propose a way to realize a programmable quantum current standard (PQCS) from the Josephson voltage standard and the quantum Hall resistance standard (QHR) exploiting the multipl…
Quantum Hall effect in exfoliated graphene affected by charged impurities: metrological measurements
J. Guignard, D. Leprat, D. C. Glattli +2
Metrological investigations of the quantum Hall effect (QHE) completed by transport measurements at low magnetic field are carried out in a-few--wide Hall bars made of…
Heating process in the pre-Breakdown regime of the Quantum Hall Efect : a size dependent effect
Y. M. Meziani, C. Chaubet, B. Jouault +4
Our study presents experimental measurements of the contact and longitudinal voltage drops in Hall bars, as a function of the current amplitude. We are interested in the heating ph…
Behavior of the contacts of Quantum Hall Effect devices at high currents : an electronic thermometer
Y. M. Meziani, C. Chaubet, S. Bonifacie +4
This paper reports on an experimental study of the contact resistance of Hall bars in the Quantum Hall Effect regime while increasing the current through the sample. These measurem…