Superconductivity in Multilayer Perovskite: Weak Coupling Analysis
arXiv:0804.2871 · doi:10.1143/JPSJ.75.034715
Abstract
We investigate the superconductivity of a three-dimensional d-p model with a multilayer perovskite structure on the basis of the second-order perturabation theory within the weak coupling framework. Our model has been designed with multilayer high- superconducting cuprates in mind. In our model, multiple Fermi surfaces appear, and the component of a superconducting gap function develops on each band. We have found that the multilayer structure can stabilize the superconductivity in a wide doping range.
10 pages, 5 figures