Hole pairing and phonon dynamics in generalized 2D $t-J-$Holstein models
Condensed Matter
2009-10-28 v1
Abstract
The formation of hole pairs in the planar t-J model is studied in the presence of independent {\it dynamic} vibrations of the in-plane oxygen atoms. In-plane (breathing modes) and out-of-plane (buckling modes) displacements are considered. We find strong evidences in favor of a stabilization of the two hole bound pair by out-of-plane vibrations of the in-plane oxygens. On the contrary, the breathing modes weaken the binding energy of the hole pair. These results are discussed in the context of the superconducting cuprates.
Cite
@article{arxiv.cond-mat/9605198,
title = {Hole pairing and phonon dynamics in generalized 2D $t-J-$Holstein models},
author = {T. Sakai and D. Poilblanc and D. J. Scalapino},
journal= {arXiv preprint arXiv:cond-mat/9605198},
year = {2009}
}
Comments
4 pages LaTeX and 6 PostScript figures in uuencoded form