In a 2D Hubbard model with spin-dependent nearest-neighbor interactions favoring equal-spin alignment, fourth-order perturbation theory finds ferromagnetic plaquette fluctuations that reshape the Fermi surface into quasi-1D bands and make equal-spin triplet p-wave pairing the leading pairing…
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Lifshitz transition and triplet $p$-wave pairing from the induced ferromagnetic plaquette via spin differentiated nonlocal interaction
In a 2D Hubbard model with spin-dependent nearest-neighbor interactions favoring equal-spin alignment, fourth-order perturbation theory finds ferromagnetic plaquette fluctuations that reshape the Fermi surface into quasi-1D bands and make equal-spin triplet p-wave pairing the leading pairing…