Phase Separation of the Two-Dimensional t-J model

C. T. Shih; Y. C. Chen; T. K. Lee

doi:10.1103/physrevb.57.627

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Phase Separation of the Two-Dimensional t-J model

C. T. Shih·Y. C. Chen·T. K. Lee

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Abstract

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 $0.3<J/t<0.5$ there is no phase separation.

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C. T. Shih, Y. C. Chen, T. K. Lee. 1997-05-16. Phase Separation of the Two-Dimensional t-J model. https://doi.org/10.1103/physrevb.57.627

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