Projects per year
Abstract
We have measured the electronic heat capacity of thin film nanowires of copper and silver at temperatures 0.1-0.3 K; the films were deposited by standard electron-beam evaporation. The specific heat of the Ag films of sub-100-nm thickness agrees with the bulk value and the free-electron estimate, whereas that of similar Cu films exceeds the corresponding reference values by one order of magnitude. The origin of the anomalously high heat capacity of copper films remains unknown for the moment. Based on the small heat capacity at low temperatures and the possibility to devise a tunnel probe thermometer on it, metal films form a promising absorber material, e.g., for microwave photon calorimetry.
Original language | English |
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Article number | 115422 |
Pages (from-to) | 1-7 |
Journal | Physical Review B |
Volume | 97 |
Issue number | 11 |
DOIs | |
Publication status | Published - 15 Mar 2018 |
MoE publication type | A1 Journal article-refereed |
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Projects
- 2 Finished
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QTF: Finnish Centre of Excellence in Quantum Technology
Golubev, D., Maillet, O., Pekola, J., Marin Suarez, M., Mannila, E. & Blanchet, F.
01/01/2018 → 31/12/2020
Project: Academy of Finland: Other research funding
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Quantum nanoelectronics
Peltonen, J., Viisanen, K., Marin Suarez, M., Singh, S., Karimi, B., Pekola, J., Ronzani, A. & Mannila, E.
01/01/2017 → 31/12/2018
Project: Academy of Finland: Other research funding
Equipment
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OtaNano – Low Temperature Laboratory
Pertti Hakonen (Manager)
Department of Applied PhysicsFacility/equipment: Facility