Abstract
Solid has rather interesting and technologically important properties, such as a very high superconducting transition temperature. Focusing on this compound, we report the first nontrivial application of a novel density-functional-type theory for superconductors, recently proposed by the authors. Without invoking any adjustable parameters, we obtain the transition temperature, the gaps, and the specific heat of in very good agreement with experiment. Moreover, our calculations show how the Coulomb interaction acts differently on and states, thereby stabilizing the observed superconducting phase.
- Received 4 October 2004
DOI:https://doi.org/10.1103/PhysRevLett.94.037004
©2005 American Physical Society