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Magnetic flux penetration into finite length thin-walled niobium cylinders
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SYSNO ASEP 0501159 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Magnetic flux penetration into finite length thin-walled niobium cylinders Author(s) Tsindlekht, M.I. (IL)
Genkin, V.M. (IL)
Felner, I. (IL)
Zeides, F. (IL)
Katz, N. (IL)
Gazi, Š. (SK)
Chromik, Š. (SK)
Koláček, Jan (FZU-D) RID, ORCID
Maryško, Miroslav (FZU-D) RIDNumber of authors 9 Source Title Physica. C. - : Elsevier - ISSN 0921-4534
Roč. 545, Feb (2018), s. 10-13Number of pages 4 s. Language eng - English Country NL - Netherlands Keywords vortex avalanches ; superconductors Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Institutional support FZU-D - RVO:68378271 UT WOS 000424819300003 EID SCOPUS 85037711548 DOI 10.1016/j.physc.2017.10.014 Annotation The distribution of magnetic field in a finite thin -walled Nb superconducting cylinder in an axial magnetic field is analyzed. Both current density and magnetic field exhibit strong maximum in the cylinder edges. This triggers a giant flux jump in the hollow cylinder when a slowly increasing external magnetic field reaches a threshold value. Experimentally measured flux jumps were observed in a wide range of external fields, even below H c 1 of the Nb film. The field at which the jumps appear is temperature dependent. It was found that with increasing the wall thickness the singularity of the current density and magnetic field on the edges decreases, which explains the absence of giant jumps in a sample with thick walls in fields below Hc1. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2019
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