Enhanced critical current density in the BSCCO single crystal grown by the traveling solvent floating zone method

N. Chikumoto, K. Furusawa, M. Murakami

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We have successfully grown BSCCO single crystals showing high critical current density of 2×106 A/cm2 at 20 K. Magneto-optical observation showed that the sample exhibited inhomogeneous penetration of magnetic flux correlated with the crystal b-axis. According to compositional analyses using wave-dispersive spectrometry (WDS), the crystals consisted of two phases, for which the Ca content was slightly different. It was also found that the values of the overall critical current density derived from the magnetization measurements depend on the portion of these two regions. Transmission electron microscopy revealed that strong pinning materials contain the region with a short incommensulate modulation period compared to the previously reported values, which might be responsible for extremely high J c values.

本文言語English
ページ(範囲)463-466
ページ数4
ジャーナルPhysica C: Superconductivity and its applications
412-414
SPEC. ISS.
DOI
出版ステータスPublished - 2004 10

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
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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