Charge instabilities due to breathing mode electron-phonon coupling in the single-band Hubbard theory for cuprate superconductors.

摘要

We study possible phonon-driven charge instabilities in the cuprate superconductors within the frame-work of a single-band two- dimensional extended Hubbard electron system with on-site electron-phonon (EP) coupling to the in- and out-of-plane oxygen brea ...