Effect of on-chip filter on Coulomb blockade thermometer

L. Roschier, David Gunnarsson, M. Meschke, A. Savin, J.S. Penttilä, Mika Prunnila

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

2 Citations (Scopus)

Abstract

Coulomb Blockade Thermometer (CBT) is a primary thermometer based on electric conductance of normal tunnel junction arrays. One limitation for CBT use at the lowest temperatures has been due to environmental noise heating. To improve on this limitation, we have done measurements on CBT sensors fabricated with different on-chip filtering structures in a dilution refrigerator with a base temperature of 10 mK. The CBT sensors were produced with a wafer scale tunnel junction process. We present how the different on-chip filtering schemes affect the limiting saturation temperatures and show that CBT sensors with proper on-chip filtering work at temperatures below 20 mK and are tolerant to noisy environment.
Original languageEnglish
Article number052029
JournalJournal of Physics: Conference Series
Volume400
Issue number5
DOIs
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
Event26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China
Duration: 10 Aug 201217 Aug 2012
Conference number: 26

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thermometers
chips
filters
tunnel junctions
sensors
refrigerators
temperature
dilution
wafers
saturation
heating

Cite this

Roschier, L. ; Gunnarsson, David ; Meschke, M. ; Savin, A. ; Penttilä, J.S. ; Prunnila, Mika. / Effect of on-chip filter on Coulomb blockade thermometer. In: Journal of Physics: Conference Series. 2012 ; Vol. 400, No. 5.
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Effect of on-chip filter on Coulomb blockade thermometer. / Roschier, L.; Gunnarsson, David; Meschke, M.; Savin, A.; Penttilä, J.S.; Prunnila, Mika.

In: Journal of Physics: Conference Series, Vol. 400, No. 5, 052029, 2012.

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

TY - JOUR

T1 - Effect of on-chip filter on Coulomb blockade thermometer

AU - Roschier, L.

AU - Gunnarsson, David

AU - Meschke, M.

AU - Savin, A.

AU - Penttilä, J.S.

AU - Prunnila, Mika

N1 - LIS: OA journal CA2: TK610 SDA: AMA

PY - 2012

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AB - Coulomb Blockade Thermometer (CBT) is a primary thermometer based on electric conductance of normal tunnel junction arrays. One limitation for CBT use at the lowest temperatures has been due to environmental noise heating. To improve on this limitation, we have done measurements on CBT sensors fabricated with different on-chip filtering structures in a dilution refrigerator with a base temperature of 10 mK. The CBT sensors were produced with a wafer scale tunnel junction process. We present how the different on-chip filtering schemes affect the limiting saturation temperatures and show that CBT sensors with proper on-chip filtering work at temperatures below 20 mK and are tolerant to noisy environment.

U2 - 10.1088/1742-6596/400/5/052029

DO - 10.1088/1742-6596/400/5/052029

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JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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