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Effect of pressure on the superconducting Tc of MgB2

V. G. Tissen·M. V. Nefedova·N. N. Kolesnikov·M. P. Kulakov
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Abstract

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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V. G. Tissen, M. V. Nefedova, N. N. Kolesnikov, M. P. Kulakov. 2001-05-28. Effect of pressure on the superconducting Tc of MgB2. https://doi.org/10.1016/s0921-4534(01)00918-2

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