Stripe stability in the extended t-J model on planes and four-leg ladders

Article

关键词: COPPER-OXIDE SUPERCONDUCTORS;    PHASE-SEPARATION;    LATTICE MODELS;    HOLE;    PHOTOEMISSION;    RENORMALIZATION;    DISPERSION;    SR2CUO2CL2;    STATES;   

DOI  :  10.1103/PhysRevB.59.R11649

来源: SCIE

【 摘 要 】

The tendencies to phase-separation and stripe formation of the t-J model on planes and four-leg ladders have been here reexamined including hole hopping terms t',tbeyond nearest-neighbor sites. The motivation for this study is the growing evidence that such terms are needed for a quantitative description of the cuprates. Using a variety of computational techniques it is concluded that the stripe tendencies considerably weaken when experimentally realistic t'<0, t >0 for hole-doped cuprates are considered. However, a small t'>0 actually enhances the stripe formation. [S0163-1829(99)51218-6].

【 授权许可】

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