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Doped Stripes in Models for the Cuprates Emerging from the One-hole Properties of the Insulator

G. B. Martins·C. Gazza·J. C. Xavier·A. Feiguin·E. Dagotto
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Abstract

The extended and standard t-J models are computationally studied on ladders and planes, with emphasis on the small J/t region. At couplings compatible with photoemission results for undoped cuprates, half-doped stripes separating $π$-shifted antiferromagnetic (AF) domains are found, as in Tranquada's interpretation of neutron experiments. Our main result is that the elementary stripe `"building-block" resembles the properties of $one$ hole at small J/t, with robust AF correlations across-the-hole induced by the local tendency of the charge to separate from the spin (G. Martins {\it et al.}, Phys. Rev. B{\bf 60}, R3716 (1999)). This suggests that the seed of half-doped stripes already exists in the unusual properties of the insulating parent compound.

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G. B. Martins, C. Gazza, J. C. Xavier, A. Feiguin, E. Dagotto. 2000-04-18. Doped Stripes in Models for the Cuprates Emerging from the One-hole Properties of the Insulator. https://doi.org/10.1103/physrevlett.84.5844

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