Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry

Jukka P. Pekola; Eemil Praks; Nikolai Yurttagül; Bayan Karimi

doi:10.1088/1681-7575/ac79e8

Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry

Jukka P. Pekola^*, Eemil Praks, Nikolai Yurttagül, Bayan Karimi

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

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Abstrakti

We investigate temperature uncertainty of Coulomb blockade thermometer (CBT) arising from inevitable non-uniformities in tunnel junction arrays. The corrections are proportional to the junction resistance variance in the linear operation regime and this result holds approximately also beyond this originally studied high temperature range. We present both analytical and numerical results, and discuss briefly their implications on achievable uniformity based on state-of-the-art fabrication of sensors.

Alkuperäiskieli	Englanti
Artikkeli	045009
Sivut	1-8
Sivumäärä	8
Julkaisu	Metrologia
Vuosikerta	59
Numero	4
DOI - pysyväislinkit	https://doi.org/10.1088/1681-7575/ac79e8
Tila	Julkaistu - 1 elok. 2022
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

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10.1088/1681-7575/ac79e8Lisenssi: CC BY

Influence of device non-uniformities on the accuracy of Coulomb blockade thermometryFinal published version, 848 KBLisenssi: CC BY

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1 Aktiivinen
2 Päättynyt

EMP
Hakonen, P.
01/01/2019 → 30/06/2023
Projekti: EU: Framework programmes funding
EMPIR Real-K
Pekola, J., Ankerhold, E., Pyhäranta, T., Blanchet, F., Chang, Y., Praks, E. & Wang, L.
26/08/2019 → 30/04/2023
Projekti: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
CoE QTF/Pekola
Pekola, J., Blanchet, F., Golubev, D., Maillet, O., Marin Suarez, M., Mannila, E. & Senior, J.
01/01/2018 → 31/12/2020
Projekti: Academy of Finland: Other research funding

Science-IT
Mikko Hakala (Manager)
Perustieteiden korkeakoulu
Laitteistot/tilat: Facility

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@article{c3144b94bd6b4f2b92aa689d0e0a9870,

title = "Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry",

abstract = "We investigate temperature uncertainty of Coulomb blockade thermometer (CBT) arising from inevitable non-uniformities in tunnel junction arrays. The corrections are proportional to the junction resistance variance in the linear operation regime and this result holds approximately also beyond this originally studied high temperature range. We present both analytical and numerical results, and discuss briefly their implications on achievable uniformity based on state-of-the-art fabrication of sensors.",

keywords = "Coulomb blockade, low temperature, non-uniformity errors, thermometry",

author = "Pekola, {Jukka P.} and Eemil Praks and Nikolai Yurttag{\"u}l and Bayan Karimi",

note = "| openaire: EC/H2020/824109/EU//EMP Funding Information: We thank Joonas T Peltonen for useful discussions. This work was supported by Academy of Finland Grant 312057 (QTF Centre of Excellence), European Microkelvin Platform (EMP, No. 824109 EU Horizon 2020) and Real-K Project (Grant No. 18SIB02). Real-K received funding from the European Metrology Programme for Innovation and Research (EMPIR) co-financed by the Participating States and from the European Union{\textquoteright}s Horizon 2020 research and innovation programme. The numerical calculations were performed using the computer infrastructure within the Aalto University School of Science (Science-IT). Publisher Copyright: {\textcopyright} 2022 BIPM & IOP Publishing Ltd.",

year = "2022",

month = aug,

day = "1",

doi = "10.1088/1681-7575/ac79e8",

language = "English",

volume = "59",

pages = "1--8",

journal = "Metrologia",

issn = "0026-1394",

publisher = "Institute of Physics Publishing ",

number = "4",

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TY - JOUR

T1 - Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry

AU - Pekola, Jukka P.

AU - Praks, Eemil

AU - Yurttagül, Nikolai

AU - Karimi, Bayan

N1 - | openaire: EC/H2020/824109/EU//EMP Funding Information: We thank Joonas T Peltonen for useful discussions. This work was supported by Academy of Finland Grant 312057 (QTF Centre of Excellence), European Microkelvin Platform (EMP, No. 824109 EU Horizon 2020) and Real-K Project (Grant No. 18SIB02). Real-K received funding from the European Metrology Programme for Innovation and Research (EMPIR) co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme. The numerical calculations were performed using the computer infrastructure within the Aalto University School of Science (Science-IT). Publisher Copyright: © 2022 BIPM & IOP Publishing Ltd.

PY - 2022/8/1

Y1 - 2022/8/1

N2 - We investigate temperature uncertainty of Coulomb blockade thermometer (CBT) arising from inevitable non-uniformities in tunnel junction arrays. The corrections are proportional to the junction resistance variance in the linear operation regime and this result holds approximately also beyond this originally studied high temperature range. We present both analytical and numerical results, and discuss briefly their implications on achievable uniformity based on state-of-the-art fabrication of sensors.

AB - We investigate temperature uncertainty of Coulomb blockade thermometer (CBT) arising from inevitable non-uniformities in tunnel junction arrays. The corrections are proportional to the junction resistance variance in the linear operation regime and this result holds approximately also beyond this originally studied high temperature range. We present both analytical and numerical results, and discuss briefly their implications on achievable uniformity based on state-of-the-art fabrication of sensors.

KW - Coulomb blockade

KW - low temperature

KW - non-uniformity errors

KW - thermometry

UR - http://www.scopus.com/inward/record.url?scp=85134852638&partnerID=8YFLogxK

U2 - 10.1088/1681-7575/ac79e8

DO - 10.1088/1681-7575/ac79e8

M3 - Article

AN - SCOPUS:85134852638

VL - 59

SP - 1

EP - 8

JO - Metrologia

JF - Metrologia

SN - 0026-1394

IS - 4

M1 - 045009

ER -

Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry

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Science-IT

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