AC susceptibility and microstructure of alkali doped polycrystalline YBCO HTSC materials

A. Veneva, D. K. Petrov, P. Dittrich, M. J. Naughton

研究成果: Article査読

6 被引用数 (Scopus)

抄録

In this work we report experimental results concerning the influence of potassium and excess copper additions on the AC complex susceptibility and microstructural development within polycrystalline YBCO high-temperature superconductors with nominal composition Y1-0.2xBa2-0.2xKxCu3Oy (x = 0-1.20). The real (X′) and the imaginary (X″) parts of the complex magnetic susceptibility of YBCO were recorded as a function of the temperature at various magnetic fields up to 10 Oe. From these data the intergranular critical current densities were calculated using Bean's critical state model. A proper concentration x, which is approximately equal to x = 0.40 in the initial Y1-0.2xBa2-0.2xKxCu3Oy batch was found to improve the Josephson coupling between the grains.

本文言語English
ページ(範囲)230-234
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
271
3-4
DOI
出版ステータスPublished - 1996 11 10
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
  • 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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