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.
Hole-doped spin multimer systems mapped to hardcore boson model exhibit superconductivity signatures; DMRG on double Kondo lattice shows pairing persists via crossover and pair correlations become independent of local spin details once binding energy is sufficient.
A d_x2-y2 orbital bilayer t-J model with first-principles parameters unifies experimental Tc controls in La3Ni2O7 via particle-hole asymmetry and J_perp dependence, proposing electron doping to enhance Tc.
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.
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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Superconductivity in doped spin multimer systems
Hole-doped spin multimer systems mapped to hardcore boson model exhibit superconductivity signatures; DMRG on double Kondo lattice shows pairing persists via crossover and pair correlations become independent of local spin details once binding energy is sufficient.
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A Unified Understanding of the Experimental Controlling of the T$_\text{c}$ of La$_3$Ni$_2$O$_7$
A d_x2-y2 orbital bilayer t-J model with first-principles parameters unifies experimental Tc controls in La3Ni2O7 via particle-hole asymmetry and J_perp dependence, proposing electron doping to enhance Tc.
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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.