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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Compressive strain and oxygenation in (La,Pr)₃Ni₂O₇₋δ films delocalize Ni 3d_z² and O 2p_z orbitals, suppress long-range spin-density-wave order, and preserve short-range magnons as prerequisites for superconductivity.
Superconductivity in bilayer nickelates emerges only when coherent interlayer d_z2-p_z-d_z2 hybridization develops, suppressing static spin-density-wave order and damping spin excitations.
Varying the Ni-Ni interlayer distance switches La3Ni2O7/LaAlO3 films between C-type and G-type spin density waves, with s± superconductivity emerging in between.
The review covers experimental and theoretical progress on superconductivity in Ruddlesden-Popper nickelates, emphasizing ambient-pressure thin-film results in La3Ni2O7.
citing papers explorer
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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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$3d_{z^2}$ orbital delocalization and magnetic collapse in superconducting (La,Pr)$_3$Ni$_2$O$_{7-\delta}$ films
Compressive strain and oxygenation in (La,Pr)₃Ni₂O₇₋δ films delocalize Ni 3d_z² and O 2p_z orbitals, suppress long-range spin-density-wave order, and preserve short-range magnons as prerequisites for superconductivity.
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Interlayer hybridization enables superconductivity in bilayer nickelates
Superconductivity in bilayer nickelates emerges only when coherent interlayer d_z2-p_z-d_z2 hybridization develops, suppressing static spin-density-wave order and damping spin excitations.
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Tunable superconductivity and spin density wave in La3Ni2O7/LaAlO3 thin films
Varying the Ni-Ni interlayer distance switches La3Ni2O7/LaAlO3 films between C-type and G-type spin density waves, with s± superconductivity emerging in between.
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Superconductivity in Ruddlesden-Popper nickelates: a review of recent progress, focusing on thin films
The review covers experimental and theoretical progress on superconductivity in Ruddlesden-Popper nickelates, emphasizing ambient-pressure thin-film results in La3Ni2O7.