2008/12/19 by M. Meschke, J. T. Peltonen, H. Courtois +1 · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Superconducting and THz Device Technology #cond-mat.supr-con
paper · pdf · doi:10.1007/s10909-008-9854-y
published as J. Low Temp. Phys. 154, 190 (2009) · 10 pages, 5 figures. To appear in the proceedings of the Conference on Micro- and Nanocryogenics (LT25 satellite) organized in Espoo, Finland (2008)
openalex publication_date 2008/12/19 · arxiv created 2009/01/08 · arxiv updated 2010/03/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A proximity-effect thermometer measures the temperature dependent critical supercurrent in a long superconductor - normal metal - superconductor (SNS) Josephson junction. Typically, the transition from the superconducting to the normal state is detected by monitoring the appearance of a voltage across the junction. We describe a new approach to detect the transition based on the temperature increase in the resistive state due to Joule heating. Our method increases the sensitivity and is especially applicable for temperatures below about 300 mK.