Preparation of granular Bi-2212 nanowires by electrospinning

Xian Lin Zeng, Michael R. Koblischka, Thomas Karwoth, Thomas Hauet, Uwe Hartmann

研究成果: Article査読

22 被引用数 (Scopus)

抄録

Bi2Sr2CaCu2O8 (Bi-2212) superconducting nanowires are synthesized by the electrospinning method. Two different precursors were employed to grow the nanowires, a Pb-doped one and a Cu,Ca-enriched one. The granular polycrystalline character was confirmed by scanning electron microscopy and x-ray diffraction measurement. The magnetic and electric properties of the samples were investigated via SQUID magnetometry and four-probe resistance measurements. The superconducting transition temperatures of the two systems were found to be similar (Pb-doped 84 K, Cu,Ca-enriched 76 K), but the transition width and the onset of irreversibility were clearly different. The magnetization loops and the resistance data demonstrate that the Cu,Ca-enriched precursor yields samples with better superconducting properties.

本文言語English
論文番号035014
ジャーナルSuperconductor Science and Technology
30
3
DOI
出版ステータスPublished - 2017 3月
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

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