Pressure dependence of Tc in the MgB2 superconductor as probed by resistivity measurements

E. Saito*, T. Taknenobu, T. Ito, Y. Iwasa, K. Prassides, T. Arima

*この研究の対応する著者

研究成果: Article査読

82 被引用数 (Scopus)

抄録

High-pressure resistivity experiments were performed on the recently discovered superconductor, MgB2. Tc decreases quasi-linearly with applied pressure to 1.4 GPa at a rate of -2.0(1) K GPa-1, which is somewhat larger than that derived from ac susceptibility measurements. The reduction of Tc is consistent with the BCS picture, in a similar way to the C60-based superconductors. Taking into account the pressure dependence of the unit cell volume, V, the volume coefficient of Tc, d(ln Tc)/dV is significantly large.

本文言語English
ジャーナルJournal of Physics Condensed Matter
13
12
DOI
出版ステータスPublished - 2001 3月 26
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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