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What is Oxygen 2p Coulomb Energy in La2CuO4 about?

The study investigates the on-site oxygen 2p two-hole Coulomb energy in La2CuO4 using Auger photoelectron coincidence spectroscopy, revealing a Coulomb repulsion energy of 6.3 ± 0.2 eV for Cu-O plane oxygen and an upper limit of 9.2 ± 0.2 eV for apical oxygen. This research highlights the significance of oxygen holes in high-temperature superconductivity and demonstrates a reduced hybridization in La2CuO4 compared to CuO. The findings contribute to a better understanding of electron correlation in cuprate s

Author

ssaibal02

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EN