Correlations in the nickelate drive the gamma band below the Fermi level and shift the dominant superconducting pairing to d_x2-y2 interlayer spin-singlet mediated by antiferromagnetism and Hund's coupling.
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First-principles calculation shows selective excitation of an IR phonon mode in La3Ni2O7 produces a small nonlinear shift that moves the Ni-O-Ni bond angle closer to 180 degrees.
Position-dependent STM spectra in La2PrNi2O7 are computed from a two-orbital bilayer model, showing orbital-selective coherence peaks and impurity scattering that enable band identification.
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.
Constrained-path QMC simulations of a bilayer Hubbard model map a crossover from d-wave to s±-wave pairing driven by Hund's coupling and crystal field splitting in La3Ni2O7.
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.
DMRG calculations on three-leg t-J ladders show power-law decaying pair correlations upon hole doping into the 1/3-filled spin-gapped state, with exponentially decaying spin correlations.
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.
citing papers explorer
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Correlation-Driven Orbital-Selective Fermiology and Superconductivity in the Bilayer Nickelate La$_3$Ni$_2$O$_7$
Correlations in the nickelate drive the gamma band below the Fermi level and shift the dominant superconducting pairing to d_x2-y2 interlayer spin-singlet mediated by antiferromagnetism and Hund's coupling.
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Optical control of the crystal structure in the bilayer nickelate superconductor La3Ni2O7 via nonlinear phononics
First-principles calculation shows selective excitation of an IR phonon mode in La3Ni2O7 produces a small nonlinear shift that moves the Ni-O-Ni bond angle closer to 180 degrees.
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Electronic theory for scanning tunneling microscopy spectra in bilayer nickelate thin films
Position-dependent STM spectra in La2PrNi2O7 are computed from a two-orbital bilayer model, showing orbital-selective coherence peaks and impurity scattering that enable band identification.
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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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Pairing Symmetry Crossover from $d$-wave to $s_{\pm}$-wave in a Bilayer Nickelate Driven by Hund's Coupling and Crystal Field Splitting
Constrained-path QMC simulations of a bilayer Hubbard model map a crossover from d-wave to s±-wave pairing driven by Hund's coupling and crystal field splitting in La3Ni2O7.
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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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Pairing properties of correlated three-leg ladders with strong interchain couplings near 1/3 filling
DMRG calculations on three-leg t-J ladders show power-law decaying pair correlations upon hole doping into the 1/3-filled spin-gapped state, with exponentially decaying spin correlations.
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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.