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Theory of resonant inelastic X-ray scattering spectrum for Ni impurities in cuprates |
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| Authors: | Kenji Tsutsui Takami Tohyama |
| Institution: | a Synchrotron Radiation Research Center, Japan Atomic Energy Agency, Hyogo 679-5148, Japan b Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan c Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan d CREST, Japan Science and Technology Agency (JST), Tokyo 102-0075, Japan |
| Abstract: | We perform the numerically exact diagonalization calculation for small Cu-O clusters with a Ni impurity site, representing the Ni-substituted cuprate, to examine the single-particle excitation spectra as well as the resonant inelastic X-ray scattering (RIXS) spectra. We clarify relations between low-energy electronic structures near the Ni site and excitations seen in the RIXS spectra. |
| Keywords: | A Superconductors C Photoelectron spectroscopy C Raman Spectroscopy D Electronic structure |
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