Now that we have a firm understanding of the energy scales of relevance to the pairing glue problem in the cuprate high temperature superconductors, we can proceed to the literature without the hassle and embarrassment of … ahem … excess baggage. One is immediately led to the PhD thesis of a one David Shai Ellis of the University of Toronto in Canada.
Electronic Excitations in Lanthanum Cuprates Measured by Resonant Inelastic X-ray
Scattering, Phd Thesis of David Shai Ellis of the University of Toronto.
https://tspace.library.utoronto.ca/bitstream/1807/24344/6/Ellis_David_S_201003_PhD_thesis.pdf
Also published as an Arxiv paper :
http://arxiv.org/abs/1101.3044
Electronic Structure of Doped Lanthanum Cuprates Studied with Resonant Inelastic X-Ray Scattering, D. S. Ellis, Jungho Kim, Harry Zhang, J. P. Hill, Genda Gu, Seiki Komiya, Yoichi Ando, D. Casa, T. Gog and Young-June Kim
And don’t forget those crazy Chinese! Never missing an opportunity to demonstrate their clear technical and intellectual superiority, they’re already on it!
http://arxiv.org/abs/1201.0342
Visualizing the atomic scale electronic structure of the Ca2CuO2Cl2 Mott insulator, Cun Ye, Peng Cai, Runze Yu, Xiaodong Zhou, Wei Ruan, Qingqing Liu, Changqing Jin and Yayu Wang
And a group in France has already explored a simple model of such a scenario.
Real-Space Pairing through Charge Transfer Excitons in High-Tc Cuprates, Michel Pouchard, Jean-Pierre Doumerc and Antoine Villesuzanne, Inorg. Chem., 2008, 47 (24), pp 11958–11964
http://pubs.acs.org/doi/abs/10.1021/ic801266q
Solid state chemistry for connecting the pieces of the high-Tc superconducting puzzle?, Michel Pouchard, Jean-Pierre Doumerc NS Antoine Villesuzanne, Solid State Sciences, Volume 12, Issue 5, May 2010, Pages 691-698, International Symposium on Structure-Property Relationships in Solid-State Materials
http://www.sciencedirect.com/science/article/pii/S1293255809002246