Phase Separation of the Two-Dimensional t-J model

Details Phase Separation of the Two-Dimensional t-J model Phase Separation of the Two-Dimensional t-J model

1997-05-16

arxiv.org/abs/cond-mat/9705156v1

Physics

Condensed Matter

Strongly Correlated Electrons

LaTex 5 pages, 4 figures

Scientific paper

10.1103/PhysRevB.57.627

The boundary of phase separation of the two-dimensional t-J model is investigated by the power-Lanczos method and Maxwell construction. The method is similar to a variational approach and it determines the lower bound of the phase separation boundary with $J_c/t=0.6\pm 0.1$ in the limit $n_e\sim 1$. In the physical interesting regime of high T_c superconductors where $0.3

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