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Stripe Stability in the Extended t-J Model on Planes and Four-Leg Ladders

T. Tohyama·C. Gazza·C. T. Shih·Y. C. Chen·T. K. Lee·S. Maekawa·E. Dagotto
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Abstract

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', t'' beyond 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.

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T. Tohyama, C. Gazza, C. T. Shih, Y. C. Chen, T. K. Lee, S. Maekawa, E. Dagotto. 1999-04-07. Stripe Stability in the Extended t-J Model on Planes and Four-Leg Ladders. https://doi.org/10.1103/physrevb.59.r11649

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