The intrinsic Josephson effect in the high-Tc superconductors is studied using the layered two-dimensional t-J model. The d.c.Josephson current which flows perpendicular to the t-J planes is obtained within the mean-field approximation and the Gutzwiller approximation. We find that the Josephson current has its maximum near the optimum doping region as a function of the doping rate.
@article{arxiv.cond-mat/9907316,
title = {Intrinsic Josephson Effect in the Layered Two-dimensional t-J Model},
author = {Noriaki Kawai and Hiroki Tsuchiura and Yukio Tanaka and Jun-ichiro Inoue},
journal= {arXiv preprint arXiv:cond-mat/9907316},
year = {2009}
}