Pair breaking by impurities in the two-dimensional t-J model
Condensed Matter
2009-10-28 v2
Abstract
Pair breaking mechanisms by impurities are investigated in the two-dimensional t-J model by exact diagonalization techniques. Analysis of binding energies, pairing correlations, dynamical spin and pair susceptibilities shows that non-magnetic impurities are more effective in suppressing pairing than magnetic ones in agreement with experimental studies of Zn- and Ni- substituted High-Tc superconductors.
Cite
@article{arxiv.cond-mat/9510028,
title = {Pair breaking by impurities in the two-dimensional t-J model},
author = {J. Riera and S. Koval and D. Poilblanc and F. Pantigny},
journal= {arXiv preprint arXiv:cond-mat/9510028},
year = {2009}
}
Comments
4 pages, Revtex v3.0, 4 figures uuencoded, ask for hardcopies at jose@ifir.edu.ar A missleading statement in the introduction was corrected