Journal
APPLIED PHYSICS LETTERS
Volume 107, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4930142
Keywords
-
Categories
Funding
- Joint Research Project Qu-Ampere within the European Metrology Research Programme (EMRP) [JRP SIB07]
- EMRP within EURAMET
- EMRP within European Union
Ask authors/readers for more resources
We report on high-accuracy measurements of quantized current, sourced by a tunable-barrier single-electron pump at frequencies f up to 1 GHz. The measurements were performed with an ultrastable picoammeter instrument, traceable to the Josephson and quantum Hall effects. Current quantization according to I = ef with e being the elementary charge was confirmed at f = 545 MHz with a total relative uncertainty of 0.2 ppm, improving the state of the art by about a factor of 5. The accuracy of a possible future quantum current standard based on single-electron transport was experimentally validated to be better than the best (indirect) realization of the ampere within the present SI. (C) 2015 AIP Publishing LLC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available