%0 Journal Article
%T Pressure dependence of Tc in the MgB2 superconductor as probed by resistivity measurements
%A E. Saito
%A T. Taknenobu
%A T. Ito
%A Y. Iwasa
%A K. Prassides
%J Physics
%D 2001
%I arXiv
%R 10.1088/0953-8984/13/12/102
%X 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, which is somewhat larger than that derived from recently-reported 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(lnTc)/dV is significantly large.
%U http://arxiv.org/abs/cond-mat/0102511v1