Abstract
By using a variational Monte Carlo technique, stability of the striped phases is studied for the two-dimensional t– J model with the three-site term near 1/8 hole doping. It is found that both diagonally and vertically striped phases are comparable in energy with the d x 2− y 2 -wave superconducting state in the small- J/ t region. Hole-`filled’ domain walls prefer diagonal stripes, whereas `half-filled’ domain walls vertical ones, in accordance with the situation observed in nickelates and cuprates.
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