Phase separation in carbon-doped MgB2 studied by means of alternating current susceptibility measurements

K. Papagelis*, J. Arvanitidis, S. Margadonna, Y. Iwasa, T. Takenobu, M. Pissas, K. Prassides

*この研究の対応する著者

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The phase purity and/or possible phase inhomogeneities in the MgB2-xCx (0≤x≤0.1) ternaries were examined. The investigations were done by carrying out ac susceptibility measurements at different ac amplitudes and dc magnetic fields as a function of temperature. The samples were prepared by heating mixed powders of amorphous boron, carbon black and magnesium. Absence of weak links were confirmed by the linear dependence of the ac susceptibility on the amplitude and frequency of the applied ac field. No peak characteristic of intergranular losses was found at low temperatures in the imagery part of the ac susceptibility.

本文言語English
ページ(範囲)7363-7369
ページ数7
ジャーナルJournal of Physics Condensed Matter
14
31
DOI
出版ステータスPublished - 2002 8 12
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 電子材料、光学材料、および磁性材料

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