Evidence for universality of tunable-barrier electron pumps
We review recent precision measurements on semiconductor tunable-barrier electron
pumps operating in a ratchet mode. Seven studies on five different designs of pumps have …
pumps operating in a ratchet mode. Seven studies on five different designs of pumps have …
Precision measurement of an electron pump at 2 GHz; the frontier of small DC current metrology
A well-characterised sample of silicon tunable-barrier electron pump has been operated at a
frequency of 2 GHz using a custom drive waveform, generating a pump current of 320 pA …
frequency of 2 GHz using a custom drive waveform, generating a pump current of 320 pA …
Thermal-error regime in high-accuracy gigahertz single-electron pum**
Single-electron pumps based on semiconductor quantum dots are promising candidates for
the emerging quantum standard of electrical current. They can transfer discrete charges with …
the emerging quantum standard of electrical current. They can transfer discrete charges with …
Realisation of a quantum current standard at liquid helium temperature with sub-ppm reproducibility
SP Giblin, E Mykkänen, A Kemppinen, P Immonen… - Metrologia, 2020 - iopscience.iop.org
A silicon electron pump operating at the temperature of liquid helium has demonstrated
repeatable operation with sub-ppm accuracy. The pump current, approximately 168 pA, is …
repeatable operation with sub-ppm accuracy. The pump current, approximately 168 pA, is …
Tailoring Single-Electron Emission Distributions in the Time–Energy Phase Space
MS Kim, W Park, SI Park, J Song, HS Sim, JJ Kim… - Nano Letters, 2024 - ACS Publications
The precise characterization and control of single-electron wave functions emitted from a
single-electron source are essential for advancing electron quantum optics. Here, we …
single-electron source are essential for advancing electron quantum optics. Here, we …
Precision measurement of single-electron current with quantized Hall array resistance and Josephson voltage
A single electron pump was incorporated with a quantum Hall resistance and a Josephson
voltage for the current evaluation in the framework of Ohm's law. The pump current of about …
voltage for the current evaluation in the framework of Ohm's law. The pump current of about …
[HTML][HTML] Comparative study of low magnetic field effects in finger-finger and finger-split gate single electron pumps
N Hanief, MD Blumenthal, H Howe, HE Beere… - Scientific African, 2024 - Elsevier
Abstract Single Electron Pump (SEP) devices that can deliver single electrons at high
frequencies are fabricated using two different gate geometries. The pump quantum dot (QD) …
frequencies are fabricated using two different gate geometries. The pump quantum dot (QD) …
[HTML][HTML] Tuning current plateau regions in parallelized single-electron pumps
The parallelization of single-electron pumps is a promising method to increase the
quantized current level produced from a semiconductor-based single-electron system. In the …
quantized current level produced from a semiconductor-based single-electron system. In the …
Development of electrical quantities primary standards
RSM Ali - Transactions of the Institute of Measurement and …, 2022 - journals.sagepub.com
The developments of primary standards for electrical quantities that practically realize the
electrical units such as ampere (A), volt (V), ohm (Ω), and farad (F) are introduced in this …
electrical units such as ampere (A), volt (V), ohm (Ω), and farad (F) are introduced in this …
Non-adiabatic single-electron pumps in a dopant-free GaAs/AlGaAs 2DEG
We have realized quantized charge pum** using non-adiabatic single-electron pumps in
dopant-free GaAs two-dimensional electron gases. The dopant-free III–V platform allows for …
dopant-free GaAs two-dimensional electron gases. The dopant-free III–V platform allows for …