Pairing on striped $t$-$t^{\prime }$-$J$ lattices

Abstract

Results are given from a density matrix renormalization group study of pairing on a striped $t$-$t^{\prime }$-$J$ lattice in the presence of boundary magnetic and pair fields. We find that pairing on a stripe depends sensitively on both $J/t$ and $t^{\prime }/t$. In the strong-pairing model-parameter regime the stripes are easily coupled by the pair field, and have a uniform phase. There is a small but measurable energy cost to create anti-phase superconducting domain walls.

4 pages, 5 figs

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