2020/11/09 by B. Ya. Shapiro, Boris Ya. Shapiro, Shapiro, Boris Ya.
Engineering · Physics and Astronomy · #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Superconducting Materials and Applications #Superconductivity (cond-mat.supr-con) #Superconductivity in MgB2 and Alloys #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.2011.04529
Model is problematic
openalex publication_date 2020/11/09 · arxiv created 2021/01/27 · arxiv updated 2021/01/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The effect of negative magnetoresistance for thin superconducting wire was considered in a simple model. These phenomena originated from competition of two mechanism: fluctuations of the order parameter and quasiparticles charge imbalance which accompanies each phase slip event. First process results in conventional positive magnetoresistance while the second mechanism gives the negative contributions. Simple analytical formula is obtained for the negative magnetic resistance caused by both the thermodynamics (TAPS) and quantum fluctuations. Theoretical results are compared with experimental data and demonstrate good agreement between theory and experiment.