Nanoscopic netted structure of compositional modulation in (Sm0.33 Eu0.33 Gd0.33) Ba2 Cu3 O7-δ superconductors

A. Hu, I. Hirabayashi, M. Winter, M. R. Koblischka, U. Hartmann, H. Zhou

研究成果: Article査読

36 被引用数 (Scopus)

抄録

We report a nanoscaled crisscross network in high-quality melt-processed (Sm0.33 Eu0.33 Gd0.33) Ba2 Cu3 O7-δ superconductors investigated with atomic force microscopy (AFM) and transmission electron microscopy. In the ten-micrometer scale, such a net was unveiled as a consequence of crossing annular stripes originating from ordering compositional modulation. The AFM topographic images further displayed that this compositional stripe result in a surface modulation with a few-nanometer wavelength and roughness. The forming mechanism of this compositional stripe and its role as strong δ Tc -type pinning defects were discussed in the context of rare earth Ba oscillation around the stoichiometric ratio and the spatial fluctuation of local Tc values.

本文言語English
論文番号092505
ページ(範囲)1-3
ページ数3
ジャーナルApplied Physics Letters
86
9
DOI
出版ステータスPublished - 2005 2月 28
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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