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.
Yang et al., Orbital-dependent electron correlation in double-layer nickelate La3Ni2O7, Nat
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Axis-resolved transport measurements on RP nickelates show that stronger interlayer electronic coherence correlates with higher maximum Tc under pressure and sensitively tracks magnetic orders.
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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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Interlayer electronic coherence links magnetism and superconductivity in Ruddlesden-Popper nickelates
Axis-resolved transport measurements on RP nickelates show that stronger interlayer electronic coherence correlates with higher maximum Tc under pressure and sensitively tracks magnetic orders.