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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Additional interaction terms enhance the Seebeck coefficient and produce multiple doping-dependent sign changes tied to gap opening and Fermi-surface topology changes.
In the Hubbard model for twisted bilayer cuprates at U/t=3.85, the Chern number is ±8 in the electron-doped regime and 0 in the hole-doped regime, confirmed by edge-state analysis.
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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The thermopower properties of interacting systems
Additional interaction terms enhance the Seebeck coefficient and produce multiple doping-dependent sign changes tied to gap opening and Fermi-surface topology changes.
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Topological superconductivity in a Hubbard model for twisted bilayer cuprates
In the Hubbard model for twisted bilayer cuprates at U/t=3.85, the Chern number is ±8 in the electron-doped regime and 0 in the hole-doped regime, confirmed by edge-state analysis.