Carbon miscibility in the boron layers of the MgB2 superconductor

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

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)3894-3897
Number of pages4
JournalChemistry of Materials
Volume14
Issue number9
DOIs
Publication statusPublished - 2002 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Carbon miscibility in the boron layers of the MgB<sub>2</sub> superconductor'. Together they form a unique fingerprint.

Cite this