In a bilayer two-orbital t-J model for La3Ni2O7, the leading pairing is either extended s-wave or d_{x^2-y^2}-wave, and moving the z2 bonding band through the Fermi level switches the dominant pairing orbital from z2 to x2-y2.
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Orbital-selective correlation effects and superconducting pairing symmetry in a multiorbital $t$-$J$ model for bilayer nickelates
In a bilayer two-orbital t-J model for La3Ni2O7, the leading pairing is either extended s-wave or d_{x^2-y^2}-wave, and moving the z2 bonding band through the Fermi level switches the dominant pairing orbital from z2 to x2-y2.