Dynamic evolution of flux distributions in a pulse-driven superconductor by high-speed magneto-optical imaging
| Autor: | Yuto Kinoshita, Atsutaka Maeda, Hodaka Kurokawa, Masashi Tokunaga, Fuyuki Nabeshima |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Superconductivity Surface barrier Materials science Physics and Astronomy (miscellaneous) Superconducting circuits Condensed Matter - Superconductivity Time evolution FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Vortex Magneto optical Computational physics Superconductivity (cond-mat.supr-con) Condensed Matter::Superconductivity 0103 physical sciences Microscopy 0210 nano-technology |
| Zdroj: | Applied Physics Letters. 116:262601 |
| ISSN: | 1077-3118 0003-6951 |
| 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: | OpenAIRE |
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