Symmetry analysis shows orbital hybridization vanishes along the BZ diagonal, allowing the gap on alpha/beta pockets to test d_x2-y2 vs d_z2 dominance; experiments and RPA favor Hund's rule mechanism with full gap.
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cond-mat.str-el 2years
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DMRG simulations on a 1D bilayer two-orbital model for La3Ni2O7 show superconducting correlations suppressed near half-filling of the 3d_z2 orbital, indicating its itinerancy favors pairing.
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What Does the Single-Particle Spectrum Imply on the Pairing Nature and Pairing Mechanism in La$_3$Ni$_2$O$_7$?
Symmetry analysis shows orbital hybridization vanishes along the BZ diagonal, allowing the gap on alpha/beta pockets to test d_x2-y2 vs d_z2 dominance; experiments and RPA favor Hund's rule mechanism with full gap.
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The evolution of pairing correlation with $3d_{z^{2}}$ electron filling in a bilayer two-orbital model for La$_3$Ni$_2$O$_7$
DMRG simulations on a 1D bilayer two-orbital model for La3Ni2O7 show superconducting correlations suppressed near half-filling of the 3d_z2 orbital, indicating its itinerancy favors pairing.