Pairing in Cu-O Models: Clues of Joint Electron-Phonon and Electron-Electron Interactions

Details Pairing in Cu-O Models: Clues of Joint Electron-Phonon and Electron-Electron Interactions Pairing in Cu-O Models: Clues of Joint Electron-Phonon and Electron-Electron Interactions

2004-01-22

arxiv.org/abs/cond-mat/0401428v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 3 figures, accepted by Phys. Rev. B

Scientific paper

10.1103/PhysRevB.69.092508

We discuss a many-electron Hamiltonian with Hubbard-like repulsive interaction and linear coupling to the phonon branches, having the Cu-O plane of the superconducting cuprates as a paradigm. A canonical transformation extracts an effective two-body problem from the many-body theory. As a prototype system we study the $\cu$ cluster, which yields electronic pairing in the Hubbard model; moreover, a standard treatment of the Jahn-Teller effect predicts distortions that destroy electronic pairing. Remarkably, calculations that keep all the electronic spectrum into account show that vibrations are likely to be synergic with electronic pairing, if the coupling to half-breathing modes predominates, as experiments suggest.

Affiliated with

Also associated with

No associations

Rating

Pairing in Cu-O Models: Clues of Joint Electron-Phonon and Electron-Electron Interactions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Pairing in Cu-O Models: Clues of Joint Electron-Phonon and Electron-Electron Interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pairing in Cu-O Models: Clues of Joint Electron-Phonon and Electron-Electron Interactions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-384877