From antiferromagnetism to d-wave superconductivity in the two-dimensional t-J model

Article

关键词: FERMION GROUND-STATES;    MONTE-CARLO METHOD;    PHASE-SEPARATION;    PAIRING CORRELATIONS;   

DOI  :  10.1103/PhysRevB.61.R11894

来源: SCIE

【 摘 要 】

We have found that the two dimensional t-J model, for the physical parameter range J/t= 0.4 reproduces the main experimental qualitative features of high-ir, copper oxide superconductors: d-wave superconducting correlations are strongly enhanced upon small doping and clear evidence of off-diagonal long-range order is found at the optimal doping delta approximate to 0.15. On the other hand, antiferromagnetic long-range order, clearly present at zero hole doping, is suppressed at small hole density with clear absence of antiferromagnetism at delta>-0.1.

【 授权许可】

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