81 citations · 293 across the 5 of their papers we have counts for
5 papers
Modernizing the SI: implications of recent progress with the fundamental constants
Nick Fletcher, Richard S Davis, Michael Stock +1
Recent proposals to re-define some of the base units of the SI make use of definitions that refer to fixed numerical values of certain constants. We review these proposals in the c…
Precision comparison of the quantum Hall effect in graphene and gallium arsenide
T. J. B. M. Janssen, J. M. Williams, N. E. Fletcher +6
The half-integer quantum Hall effect in epitaxial graphene is compared with high precision to the well known integer effect in a GaAs/AlGaAs heterostructure. We find no difference…
Graphene, universality of the quantum Hall effect and redefinition of the SI system
T. J. B. M. Janssen, N. E. Fletcher, R. Goebel +6
The Système Internationale d'unités (SI system) is about to undergo its biggest change in half a century by redefining the units for mass and current in terms of the fundamental co…
Quantized charge pumping through a quantum dot by surface acoustic waves
J. Ebbecke, N. E. Fletcher, T. J. B. M. Janssen +4
We present a realization of quantized charge pumping. A lateral quantum dot is defined by metallic split gates in a GaAs/AlGaAs heterostructure. A surface acoustic wave whose wavel…
Quantized charge transport through a static quantum dot using a surface acoustic wave
N. E. Fletcher, J. Ebbecke, T. J. B. M. Janssen +4
We present a detailed study of the surface acoustic wave mediated quantized transport of electrons through a split gate device containing an impurity potential defined quantum dot…