2023/08/23 by Marijn Lucas, Lucas, Marijn, L. V. Levitin +9
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetic Properties and Applications #Materials Science (cond-mat.mtrl-sci) #Quantum and electron transport phenomena #Theoretical and Computational Physics
paper · pdf · doi:10.48550/arxiv.2308.12349
openalex publication_date 2023/08/23 · openalex created_date 2023/08/26 · openalex updated_date 2026/07/28
Electrical and thermal transport were studied in a vacuum-annealed polycrystalline silver wire with residual resistivity ratio 200-400, in the temperature range 0.1-1.2K and in magnetic fields up to 5T. Both at zero field and at 5T the wire exhibits the Wiedemann-Franz law with the fundamental Lorenz number, contrary to an earlier report [Gloos, K. et al, Cryogenics 30, 14 (1990)]. Our result demonstrates that silver is an excellent material for thermal links in ultra-low-temperature experiments operating at high magnetic fields.