Intermittent Flux Penetration at Different Temperatures in YBa2Cu3O7−x on NdGaO3 Substrates

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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In type-II superconductors, increasing applied magnetic field penetrates gradually in the form of magnetic vortices. It is of great interest to understand the dynamics of magnetic flux in different superconducting materials, as this phenomenon can severely limit the performance of superconductors in applications. YBa2Cu3O7−x (YBCO) is an important high-temperature superconductor, but until recently, it has been hard to make wires from it due to misalignment of superconducting grains. A solution to this problem is to deposit YBCO on vicinal substrates to better align the grains. Some of these samples show a strongly intermittent flux penetration at low temperatures. In this work, we have studied flux penetration in YBCO deposited on a 14° vicinal substrate of NdGaO3 (NGO) at different temperatures.
Original languageEnglish
JournalJournal of Superconductivity and Novel Magnetism
Publication date2011
Volume24
Journal number1-2
Pages179-181
ISSN1557-1939
DOIs
StatePublished
CitationsWeb of Science® Times Cited: 1

Keywords

  • Thermomagnetic instability, Magneto-optical imaging, Flux avalanches, Vicinal substrate, Miscut substrate
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