High-pressure study on MgB2

B. Lorenz, R. L. Meng, C. W. Chu

Research output: Contribution to journalArticlepeer-review

140 Citations (Scopus)


The hydrostatic pressure effect on the newly discovered superconductor MgB2 has been determined. The transition temperature Tc was found to decrease linearly at a large rate of - 1.6 K/GPa, in good quantitative agreement with the ensuing calculated value of - 1.4 K/GPa within the BCS framework by Loa and Syassen, using the full-potential linearized augmented plane-wave method. The relative pressure coefficient d ln Tc/dp for MgB2 also falls between the known values for conventional sp and d superconductors. The observation, therefore, suggests that electron-phonon interactions play a significant role in the superconductivity of the compound.

Original languageEnglish
Article number012507
Pages (from-to)125071-125073
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number1
Publication statusPublished - 2001

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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