A two-component scenario unifies key observations in bilayer nickelate superconductivity, predicting doping-dependent superconducting domes and normal-state behaviors that differ by interlayer coupling strength.
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Two specific antiferromagnetic exchange channels in bilayer La3Ni2O7 produce a robust s± superconducting state via the gene principle and collaborative Fermi-surface rule.
The superconducting T_c of La3Ni2O7 is controlled by the d_x2-y2 orbital filling and the interlayer magnetic exchange J_perp, so clean electron doping should raise T_c.
Multi-orbital Hartree-Fock calculations identify single-stripe magnetic order in bilayers and mirror-odd SDW in trilayers as consistent with experimental magnetic excitations in multilayer nickelates.
Hole-doped spin multimer systems exhibit superconductivity signatures when mapped to the hardcore boson model in the strong-binding-energy limit, with pairing persisting in DMRG simulations of the double Kondo lattice.
La5Ni3O11 shows layer-selective physics with the single layer near a Mott instability and the bilayer dominating low-energy states, yielding an electronic structure that closely resembles the bilayer La3Ni2O7.
Superconductivity in La3Ni2O7 arises from interlayer Cooper pairs of 3d_x2-y2 electrons driven by effective J_perp from Hund-assisted AFM exchange transfer, while localized 3d_z2 electrons form rung singlets that produce a pseudogap but no condensate.
citing papers explorer
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A unified theory of thin film and bulk bilayer nickelates
A two-component scenario unifies key observations in bilayer nickelate superconductivity, predicting doping-dependent superconducting domes and normal-state behaviors that differ by interlayer coupling strength.
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Pairing Mechanism in Bilayer Nickelate La$_3$Ni$_2$O$_7$ Superconductors
Two specific antiferromagnetic exchange channels in bilayer La3Ni2O7 produce a robust s± superconducting state via the gene principle and collaborative Fermi-surface rule.
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Filling and Interlayer Superexchange Control Superconductivity in La$_3$Ni$_2$O$_7$
The superconducting T_c of La3Ni2O7 is controlled by the d_x2-y2 orbital filling and the interlayer magnetic exchange J_perp, so clean electron doping should raise T_c.
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Magnetic configurations and excitations in high-$T_{c}$ multilayer nickelates
Multi-orbital Hartree-Fock calculations identify single-stripe magnetic order in bilayers and mirror-odd SDW in trilayers as consistent with experimental magnetic excitations in multilayer nickelates.
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Superconductivity in doped spin multimer systems
Hole-doped spin multimer systems exhibit superconductivity signatures when mapped to the hardcore boson model in the strong-binding-energy limit, with pairing persisting in DMRG simulations of the double Kondo lattice.
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Correlated electronic structure of the alternating monolayer-bilayer nickelate La$_{5}$Ni$_{3}$O$_{11}$
La5Ni3O11 shows layer-selective physics with the single layer near a Mott instability and the bilayer dominating low-energy states, yielding an electronic structure that closely resembles the bilayer La3Ni2O7.
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Superconductivity in bilayer La$_3$Ni$_2$O$_7$: A review focusing on the strong-coupling Hund's rule assisted pairing mechanism
Superconductivity in La3Ni2O7 arises from interlayer Cooper pairs of 3d_x2-y2 electrons driven by effective J_perp from Hund-assisted AFM exchange transfer, while localized 3d_z2 electrons form rung singlets that produce a pseudogap but no condensate.
- Orbital-Selective Diagonal-Gap Test of Pairing in La$_3$Ni$_2$O$_7$