Paramagnetic Meissner Effect and Current Flow in YBCO Nanofiber Mats

Alexsander L. Pessoa, Anjela Koblischka-Veneva, Claudio L. Carvalho, Rafael Zadorosny, Michael R. Koblischka

研究成果: Article査読

抄録

Microstructural and magnetic characterizations of YBa2Cu3O7-δ nanowire fabric-like samples were performed. Fabric-like ceramic superconductors are nanoporous materials and can be applied, e.g., in magnetic shielding, since the porous morphology makes them extremely light-weight and effectively to be cooled. The samples were produced by the solution blow spinning (SBS) technique, starting from a sol-gel solution of the precursor materials in polyvinyl-alcohol. The morphology of the samples was characterized by scanning electron microscopy, transmission electron microscopy, and X-ray diffraction with the aim to analyze the possible current paths. The magnetic hysteresis loops revealed typical polycrystalline behavior, and field-cooling in various small applied fields shows the presence of the paramagnetic Meissner effect (PME), but in a distinctly different way as compared to melt-texured Bi2Sr2CaCu2O8+δ or Nb.

本文言語English
論文番号9352479
ジャーナルIEEE Transactions on Applied Superconductivity
31
5
DOI
出版ステータスPublished - 2021 8
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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