Hole-hole superconducting pairing in the t-J model induced by spin-wave exchange
V. I. Belinicher, A. L. Chernyshev, A. V. Dotsenko, O. P. Sushkov
Abstract
We study numerically the hole pairing induced by spin-wave exchange. The contact hole-hole interaction is taken into account as well. It is assumed that antiferromagnetic order is preserved at all scales relevant to pairing. The strongest pairing is obtained for the d-wave symmetry of the gap. Dependence of the value of the gap on hole concentration and temperature is presented. For the critical temperature we obtain Tc about 100 K at the hole concentration delta = 0.2-0.3.
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