d-Wave Pairing Correlation in the Two-Dimensional t-J Model

C.T. Shih; H.Q. Lin; T.K. Lee; Y.C. Chen

arxiv: cond-mat/9807027 · v1 · submitted 1998-07-02 · ❄️ cond-mat.supr-con · cond-mat.str-el

d-Wave Pairing Correlation in the Two-Dimensional t-J Model

C.T. Shih , Y.C. Chen , H.Q. Lin , T.K. Lee This is my paper

classification ❄️ cond-mat.supr-con cond-mat.str-el

keywords correlationmodeld-waverangetwo-dimensionalassumptionbehaviorcomparison

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The pair-pair correlation function of the two-dimensional t-J model is studied by using the power-Lanczos method and an assumption of monotonic behavior. In comparison with the results of the ideal Fermi gas, we conclude that the 2D t-J model does not have long range d-wave superconducting correlation in the interesting parameter range of $J/t \leq 0.5$. Implications of this result will also be discussed.

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d-Wave Pairing Correlation in the Two-Dimensional t-J Model

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