Pair breaking by impurities in the two-dimensional t-J model

Details Pair breaking by impurities in the two-dimensional t-J model Pair breaking by impurities in the two-dimensional t-J model

1995-10-15

arxiv.org/abs/cond-mat/9510028v2

Physics

Condensed Matter

4 pages, Revtex v3.0, 4 figures uuencoded, ask for hardcopies at jose@ifir.edu.ar A missleading statement in the introduction

Scientific paper

10.1103/PhysRevB.54.7441

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.

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