Title :
Sub-ppm measurements of single-electron pump currents
Author :
Giblin, S.P. ; Janssen, T.J.B.M. ; Fletcher, J.D. ; See, Patrick ; Kataoka, Masayoshi
Author_Institution :
Nat. Phys. Lab., Teddington, UK
Abstract :
To date, we have demonstrated that the current from a tunable-barrier electron pump is accurate to 1.2 ppm at a pump frequency ~1 GHz. Here, we show how the existing measurement technique can be improved to yield uncertainties as low as 0.3 parts per million (ppm) for reasonably achievable experimental parameters.
Keywords :
electric current measurement; measurement uncertainty; pumps; measurement uncertainty; single-electron pump current measurement; subppm measurement; tunable-barrier electron pump; Frequency measurement; Lead; Measurement uncertainty; Resistors; Standards; Temperature measurement; Electron pumps; SI system; small currents;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4799-5205-2
DOI :
10.1109/CPEM.2014.6898450
