Effect of pressure on the superconducting Tc of MgB2

Details Effect of pressure on the superconducting Tc of MgB2 Effect of pressure on the superconducting Tc of MgB2

2001-05-24

arxiv.org/abs/cond-mat/0105475v2

Physica C v.363 pp. 194-197 (2001)

Physics

Condensed Matter

Superconductivity

11 pages, including 4 figures

Scientific paper

10.1016/S0921-4534(01)00918-2

Measurements of the superconducting transition temperature Tc have been performed by the inductive method on MgB2 at pressures up to 28 GPa. Tc decreases with applied pressure, exhibiting a cusp at about 9 GPa. We interpret the appearance of this anomaly in the Tc(P) dependence as a result of the pressure-induced electronic transition. Recent band-structure calculations for MgB2 give some support for such an explanation.

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