Projekteja vuodessa
Abstrakti
We present a set of experiments to optimize the performance of a noninvasive thermometer based on proximity superconductivity. Current through a standard tunnel junction between an aluminum superconductor and a copper electrode is controlled by the strength of the proximity induced to this normal metal, which in turn is determined by the position of a direct superconducting contact from the tunnel junction. Several devices with different distances are tested. We develop a theoretical model based on Usadel equations and dynamic Coulomb blockade that reproduces the measured results and yields a tool to calibrate the thermometer and to optimize it further in future experiments. We also propose an analytic formula that reproduces the experimental data for a wide range of temperatures.
Alkuperäiskieli | Englanti |
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Artikkeli | 054001 |
Sivumäärä | 7 |
Julkaisu | Physical Review Applied |
Vuosikerta | 13 |
Numero | 5 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 1 toukok. 2020 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Sormenjälki
Sukella tutkimusaiheisiin 'Optimized Proximity Thermometer for Ultrasensitive Detection'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Tietoaineistot
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Optimized Proximity Thermometer for Ultrasensitive Detection
Karimi, B. (Creator), Nikolic´, D. (Creator), Tuukkanen, T. (Creator), Peltonen, J. (Creator), Belzig, W. (Creator) & Pekola, J. P. (Creator), Zenodo, 2020
DOI - pysyväislinkki: 10.1103/PhysRevApplied.13.054001, https://zenodo.org/record/5786460
Tietoaineisto: Dataset
Projektit
- 4 Päättynyt
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QuESTech: QUantum Electronics Science and TECHnology training
Pekola, J. (Vastuullinen tutkija)
01/01/2018 → 31/12/2021
Projekti: EU: Framework programmes funding
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QTF: Kvanttiteknologian huippuyksikkö
Pekola, J. (Vastuullinen tutkija)
01/01/2018 → 31/12/2020
Projekti: Academy of Finland: Other research funding
Laitteet
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OtaNano – Kylmälaboratorio
Savin, A. (Manager) & Rissanen, A. (Other)
OtaNanoLaitteistot/tilat: Facility
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