The influence of Au and Pr on the superconductivity-related gap in RBa2Cu3O7−δ

✍ Scribed by C. Thomsen; B. Friedl; M. Cieplak; M. Cardona

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 168 KB
• Volume: 185-189
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(91)91596-v

✦ Synopsis

The superconductivity-related self-energies of phonons in the high-To superconductor RBa2CuzOr_~ (R = rare earth) have recently madepossible the determination of a ,Mac of the superconducting gapJ .The addition of impurities has the apparent effect of shifting this gap value to higher energies. We interpret these results in terms ol a symmetrization of the gap at the Fermi surface by the impurities.