Dynamic Evolution of Flux Distributions in a Pulse-driven Superconductor by High-speed Magneto-optical Imaging

Autor: Kurokawa, H., Kinoshita, Y., Nabeshima, F., Tokunaga, M., Maeda, A.
Rok vydání: 2019
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1063/5.0015113
Popis: The accurate understanding of flux dynamics is essential for the design and operation of superconducting circuits. The time evolution of flux-density distribution in an NbN strip by the transport current was observed using high-speed magneto-optical microscopy. It was determined that even for the dynamic penetration and exclusion of vortices under the transport current, the surface barrier is essential. This feature is important for the correct understanding of the complex behavior of state-of-the-art superconducting devices.
Databáze: arXiv