Time-resolved optical spectroscopy on La3Ni2O7 reveals two high-energy excitations with density-wave gaps of 54 meV and 67 meV, relaxation via the Rothwarf-Taylor model, and four coherent phonons with distinct electronic couplings and softening behavior.
Plokhikh et al., Unraveling spin density wave order in layered nickelates La3Ni2O7 and La2PrNi2O7 via neutron diffraction, arXiv:2503.05287 (2025)
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Single-crystal neutron scattering establishes stripe antiferromagnetic order with strong interlayer coupling and competing in-plane exchanges in La3Ni2O7, yielding fluctuating moments comparable to cuprates but with lower bandwidth.
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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High-energy electronic excitations in La3Ni2O7 by time-resolved optical spectroscopy
Time-resolved optical spectroscopy on La3Ni2O7 reveals two high-energy excitations with density-wave gaps of 54 meV and 67 meV, relaxation via the Rothwarf-Taylor model, and four coherent phonons with distinct electronic couplings and softening behavior.
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Nature of magnetism in bilayer nickelate La3Ni2O7 single crystals
Single-crystal neutron scattering establishes stripe antiferromagnetic order with strong interlayer coupling and competing in-plane exchanges in La3Ni2O7, yielding fluctuating moments comparable to cuprates but with lower bandwidth.
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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.