Singlet Stripe Phases in the planar t-J Model

Hirokazu Tsunetsugu; Matthias Troyer; T. M. Rice

doi:10.1103/physrevb.51.16456

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arXiv · cond-mat/9408024

Singlet Stripe Phases in the planar t-J Model

Hirokazu Tsunetsugu·Matthias Troyer·T. M. Rice

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Abstract

The energies of singlet stripe phases in which a plane is broken up into spin liquid ladders by lines of holes, is examined. If the holes were static then patterns containing spin liquids with a finite spin gap are favored. The case of dynamic holes is treated by assembling t-J ladders oriented perpendicular to the stripes. For a wide region around $J/t \approx 1$ the hole-hole correlations in a single ladder are found to be predominantly charge density wave type but an attraction between hole pairs on adjacent ladders leads to a stripe phase. A quantum mechanical melting of the hole lines at smaller $J/t$ values leads to a Bose condensate of hole pairs, i.e. a superconducting phase.

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Hirokazu Tsunetsugu, Matthias Troyer, T. M. Rice. 1994-08-05. Singlet Stripe Phases in the planar t-J Model. https://doi.org/10.1103/physrevb.51.16456

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