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Polymer-encapsulate...
Polymer-encapsulated molecular doped epigraphene for quantum resistance metrology
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- He, Hans (författare)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola,Chalmers Univ Technol, Sweden
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- Lara Avila, Samuel, 1983 (författare)
- Chalmers University of Technology, Sweden; National Physical Laboratory, UK,Chalmers tekniska högskola,National Physical Laboratory (NPL),Chalmers Univ Technol, Sweden; Natl Phys Lab, England
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- Kim, Kyung Ho, 1984 (författare)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola,Chalmers Univ Technol, Sweden
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- Fletcher, Nick (författare)
- NPL National Physical Laboratory, UK,National Physical Laboratory (NPL),Natl Phys Lab, England
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- Rozhko, Sergiy (författare)
- NPL National Physical Laboratory, UK,National Physical Laboratory (NPL),Natl Phys Lab, England
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- Bergsten, Tobias (författare)
- RISE,Mätteknik,RISE Research Institutes of Sweden,RISE Res Inst Sweden, Sweden
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- Eklund, Gunnar (författare)
- RISE,Mätteknik,RISE Research Institutes of Sweden,RISE Res Inst Sweden, Sweden
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- Cedergren, Karin, 1975 (författare)
- RISE,Mätteknik,RISE Research Institutes of Sweden,RISE Res Inst Sweden, Sweden
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- Yakimova, Rositsa (författare)
- Linköpings universitet,Halvledarmaterial,Tekniska fakulteten
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- Park, Yung (författare)
- Seoul National University, South Korea; University of Pennsylvania, US,University of Pennsylvania,Seoul Natl Univ, South Korea; Univ Penn, PA 19104 USA
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- Tzalenchuk, Alexander (författare)
- NPL National Physical Laboratory, UK,National Physical Laboratory (NPL),Royal Holloway University of London,Natl Phys Lab, England; Royal Holloway Univ London, England
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- Kubatkin, Sergey, 1959 (författare)
- Chalmers University of Technology, Sweden; University of London, UK,Chalmers tekniska högskola,Chalmers Univ Technol, Sweden
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(creator_code:org_t)
- 2019-06-28
- 2019
- Engelska.
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Ingår i: Metrologia. - : Institute of Physics Publishing. - 0026-1394 .- 1681-7575. ; 56:4
- Relaterad länk:
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://research.cha...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- One of the aspirations of quantum metrology is to deliver primary standards directly to end-users thereby significantly shortening the traceability chains and enabling more accurate products. Epitaxial graphene grown on silicon carbide (epigraphene) is known to be a viable candidate for a primary realisation of a quantum Hall resistance standard, surpassing conventional semiconductor two-dimensional electron gases, such as those based on GaAs, in terms of performance at higher temperatures and lower magnetic fields. The bottleneck in the realisation of a turn-key quantum resistance standard requiring minimum user intervention has so far been the need to fine-tune the carrier density in this material to fit the constraints imposed by a simple cryo-magnetic system. Previously demonstrated methods, such as via photo-chemistry or corona discharge, require application prior to every cool-down as well as specialist knowledge and equipment. To this end we perform metrological evaluation of epigraphene with carrier density tuned by a recently reported permanent molecular doping technique. Measurements at two National Metrology Institutes confirm accurate resistance quantisation below 5n-1. Furthermore, samples show no significant drift in carrier concentration and performance on multiple thermal cycles over three years. This development paves the way for dissemination of primary resistance standards based on epigraphene
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Byggproduktion (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Construction Management (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- SAMHÄLLSVETENSKAP -- Utbildningsvetenskap -- Pedagogik (hsv//swe)
- SOCIAL SCIENCES -- Educational Sciences -- Pedagogy (hsv//eng)
Nyckelord
- grapheme
- measurement standards
- molecular doping
- quantum Hall effect
- Carrier concentration
- Electric corona
- Gallium arsenide
- Graphene
- III-V semiconductors
- Semiconducting gallium arsenide
- Semiconductor doping
- Silicon carbide
- Two dimensional electron gas
- Epitaxial graphene
- National metrology institutes
- Quantum Hall resistance
- Quantum resistance
- Resistance standards
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Till lärosätets databas
- Av författaren/redakt...
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He, Hans
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Lara Avila, Samu ...
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Kim, Kyung Ho, 1 ...
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Fletcher, Nick
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Rozhko, Sergiy
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Bergsten, Tobias
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visa fler...
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Eklund, Gunnar
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Cedergren, Karin ...
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Yakimova, Rosits ...
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Park, Yung
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Tzalenchuk, Alex ...
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Kubatkin, Sergey ...
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- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Samhällsbyggnads ...
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och Byggproduktion
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Elektroteknik oc ...
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och Annan elektrotek ...
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Den kondenserade ...
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- SAMHÄLLSVETENSKAP
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SAMHÄLLSVETENSKA ...
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och Utbildningsveten ...
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och Pedagogik
- Artiklar i publikationen
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Metrologia
- Av lärosätet
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RISE
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Chalmers tekniska högskola
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Linköpings universitet