Effect of pressure on the superconducting T-c of MgB2

Authors
Tissen, VG Nefedova, MV Kolesnikov, NN Kulakov, MP
Citation
Vg. Tissen et al., Effect of pressure on the superconducting T-c of MgB2, PHYSICA C, 363(3), 2001, pp. 194-197
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
09214534 → ACNP
Volume
363
Issue
3
Year of publication
2001
Pages
194 - 197
Database
ISI
SICI code
0921-4534(20011115)363:3<194:EOPOTS>2.0.ZU;2-D
Abstract
Measurements of the superconducting transition temperature T-c have been pe rformed by the inductive method on MgB2 at pressures up to 28 GPa. T-c decr eases with applied pressure, exhibiting a cusp at about 9 GPa. We interpret the appearance of this anomaly in the T-c(P) dependence as a result of the pressure-induced electronic transition. Recent band-structure calculations for MgB2 give some support for such an explanation. (C) 2001 Elsevier Scie nce B.V. All rights reserved.