Pressure dependence of the superconducting transition temperature of MgCNi3

✍ Scribed by G. Garbarino; M. Monteverde; M. Núñez-Regueiro; C. Acha; R. Weht; T. He; K.A. Regan; N. Rogado; M. Hayward; R.J. Cava

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 235 KB
• Volume: 408-410
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2004.03.078

✦ Synopsis

The new superconductor MgCNi 3 with a T C 8 K is an interesting candidate for non-conventional superconductivity as it is in the borderline of ferromagnetism. We have performed a systematic study of several samples of this compound under pressures up to 25 GPa, measuring the electrical resistivity between 1 and 300 K. We observe a slight increase of the critical superconducting transition temperature at high pressures. Our results are compared with the evolution under pressure of the calculated electronic band structure.