%0 Journal Article
%T High Pressure Study on MgB2
%A B. Lorenz
%A R. L. Meng
%A C. W. Chu
%J Physics
%D 2001
%I arXiv
%R 10.1103/PhysRevB.64.012507
%X 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 linearlized augmented plane-wave method. The relative pressure coefficient, dlnTc/dp, for MgB2 also falls between the known values for conventional sp- and d-superconductors. The observation, therefore, suggests that electron-phonon interaction plays a significant role in the superconductivity of the compound.
%U http://arxiv.org/abs/cond-mat/0102264v3