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

J. Riera·S. Koval·D. Poilblanc·F. Pantigny
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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.

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J. Riera, S. Koval, D. Poilblanc, F. Pantigny. 1995-10-18. Pair breaking by impurities in the two-dimensional t-J model. https://doi.org/10.1103/physrevb.54.7441

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