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

Research output: Contribution to journalArticle

81 Citations (Scopus)

Abstract

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.

Original languageEnglish
JournalJournal of Physics Condensed Matter
Volume13
Issue number12
DOIs
Publication statusPublished - 2001 Mar 26
Externally publishedYes

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pressure dependence
Superconducting materials
electrical resistivity
magnetic permeability
coefficients
cells
Experiments

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Pressure dependence of Tc in the MgB2 superconductor as probed by resistivity measurements. / Saito, E.; Taknenobu, T.; Ito, T.; Iwasa, Y.; Prassides, K.; Arima, T.

In: Journal of Physics Condensed Matter, Vol. 13, No. 12, 26.03.2001.

Research output: Contribution to journalArticle

Saito, E. ; Taknenobu, T. ; Ito, T. ; Iwasa, Y. ; Prassides, K. ; Arima, T. / Pressure dependence of Tc in the MgB2 superconductor as probed by resistivity measurements. In: Journal of Physics Condensed Matter. 2001 ; Vol. 13, No. 12.
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AU - Arima, T.

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