Superconductors with two critical temperatures

✍ Scribed by E. Di Grezia; S. Esposito; G. Salesi

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 131 KB
• Volume: 451
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2006.10.013

✦ Synopsis

We propose a simple model for superconductors endowed with two critical temperatures, corresponding to two second-order phase transitions, in the framework of the Ginzburg-Landau mean-field theory. For very large Cooper pair self-interaction, in addition to the standard condensation occurring in the Ginzburg-Landau theory, we find another phase transition at a lower temperature with a maximum difference of 15% between the two critical temperatures.