Carbon miscibility in the boron layers of the MgB2 superconductor

I. Maurin, S. Margadonna*, K. Prassides, T. Takenobu, Y. Iwasa, A. N. Fitch

*この研究の対応する著者

研究成果査読

22 被引用数 (Scopus)

抄録

A detailed structural analysis of the MgB2-xCx series at low doping levels (0 ≤ x ≤ 0.1) is presented. High-resolution synchrotron x-ray powder diffraction experiments show an extremely small miscibility of carbon within the boron sheets despite the structural analogy between MgB2 and graphite. Multiphase behavior is detected for x ≥ 0.04. The coexisting phases, isostructural with the parent MgB2 compound, differ mainly in their in-plane lattice constants, as evidenced by the splitting of the (hk0) Bragg reflections. All phases contain carbon in substitution for boron but in different concentrations.

本文言語English
ページ(範囲)3894-3897
ページ数4
ジャーナルChemistry of Materials
14
9
DOI
出版ステータスPublished - 2002 9
外部発表はい

ASJC Scopus subject areas

  • 材料化学
  • 材料科学(全般)

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