Charge-transfer exciton in La 2 CuO 4 probed with resonant inelastic x-ray scattering

@article{Ellis2008ChargetransferEI,
  title={Charge-transfer exciton in La 2 CuO 4 probed with resonant inelastic x-ray scattering},
  author={D. Ellis and J. Hill and S. Wakimoto and R. Birgeneau and D. Casa and T. Gog and Young-june Kim},
  journal={Physical Review B},
  year={2008},
  volume={77},
  pages={060501}
}
We report a high-resolution resonant inelastic x-ray scattering study of ${\mathrm{La}}_{2}{\mathrm{CuO}}_{4}$. A number of spectral features are identified that were not clearly visible in earlier lower-resolution data. The momentum dependence of the spectral weight and the dispersion of the lowest-energy excitation across the insulating gap have been measured in detail. The temperature dependence of the spectral features was also examined. The observed charge-transfer edge shift, along with… Expand

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Charge excitations in cuprate and nickelate in resonant inelastic x-ray scattering.
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