Graphene impedance quantum standard
Public support
Provider
Ministry of Education, Youth and Sports
Programme
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Call for proposals
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Main participants
Český metrologický institut
Contest type
M2 - International cooperation
Contract ID
8B19009
Alternative language
Project name in Czech
Graphene impedance quantum standard
Annotation in Czech
The overall objective is to combine novel digital impedance measurement bridges with the QHE material graphene in a simplified cryogenic environment. This will provide European NMIs, calibration centres and industry with the technology that is needed to enable the practical realisation of electrical impedance units (ohm, farad, henry) in the revised SI. The specific objectives of the project are: 1. To optimise and to tailor graphene material and graphene devices in order to improve the understanding of the graphene AC quantised Hall effect (AC-QHE), as the basis for the traceability of impedance units to the QHE at temperatures of 4 K or higher in magnetic fields that are as low as possible - at most 6 T. 2. To advance digital bridges for the capacitance range from 10 pF to 10 nF at frequencies up to 100 kHz, and to develop an impedance bridge working with spectrally pure Josephson voltages up to 50 kHz in the entire complex plane.
Scientific branches
R&D category
AP - Applied research
OECD FORD - main branch
10700 - Other natural sciences
OECD FORD - secondary branch
10700 - Other natural sciences
OECD FORD - another secondary branch
10700 - Other natural sciences
CEP - equivalent branches <br>(according to the <a href="http://www.vyzkum.cz/storage/att/E6EF7938F0E854BAE520AC119FB22E8D/Prevodnik_oboru_Frascati.pdf">converter</a>)
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Completed project evaluation
Provider evaluation
U - Uspěl podle zadání (s publikovanými či patentovanými výsledky atd.)
Project results evaluation
Following the condition that the candidate of financial contribution was evaluated and afterwards selected by international provider in accordance with the rules of the program the Ministry of Education, Youth ans Sports does not realize the evaluation of project results. The project is evaluated only after its approval by an international provider.
Solution timeline
Realization period - beginning
Jun 1, 2019
Realization period - end
May 31, 2022
Project status
U - Finished project
Latest support payment
Feb 21, 2022
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP23-MSM-8B-U
Data delivery date
Jun 30, 2023
Finance
Total approved costs
1,569 thou. CZK
Public financial support
1,569 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
0 thou. CZK