Effect of pressure on the superconducting Tc of MgB 2
Abstract
Measurements of the superconducting transition temperature Tc have been performed by the inductive method on MgB 2 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 MgB 2 give some support for such an explanation.
- Publication:
-
Physica C Superconductivity
- Pub Date:
- November 2001
- DOI:
- 10.1016/S0921-4534(01)00918-2
- arXiv:
- arXiv:cond-mat/0105475
- Bibcode:
- 2001PhyC..363..194T
- Keywords:
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- Condensed Matter - Superconductivity
- E-Print:
- 11 pages, including 4 figures
