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 Julkaistu artikkeli, soviteltu |
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. (Creator), 2020
DOI - pysyväislinkki: 10.1103/PhysRevApplied.13.054001, https://zenodo.org/record/5786460
Tietoaineisto: Dataset
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SQH (ERC)
Pekola, J., Karimi, B., Singh, S., Blanchet, F., Peltonen, J., Subero Rengel, D., Upadhyay, R., Gubaydullin, A., Wang, L., Chang, Y., Mäkinen, I., Marin Suarez, M., Thomas, G., Lvov, D., Mannila, E., Senior, J., Strelnikov, A., Chiang, K., Lemziakov, S. & Praks, E.
27/09/2017 → 30/09/2023
Projekti: EU: ERC grants
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QuESTech (MC)
Pekola, J., Karimi, B. & Peltonen, J.
01/01/2018 → 31/12/2021
Projekti: EU: Framework programmes funding