Tsuyoshi Idé, Naoki Abe
KDD 2023
We theoretically study polarization and momentum-transfer dependence in Cu 4pσ-1s resonant X-ray emission spectra (RXES) of Nd2CuO4 with exact diagonalization techniques, developing our previous report [T. Idé and A. Kotani, J. Phys. Soc. Jpn. 68 (3999) 3100]. We explain the experimental polarization and angular dependence of a charge-transfer excitation about 5.7 eV above the ground state. Comparing results calculated with single- and multi-Cu models, we confirm the essential contribution of the nonlocal screening effect in Cu 4pσ-1s RXES, together with the configuration dependence of d-p hybridization. We predict considerable dependence of a CT excitation at about 2 eV on momentum transfer along the CuO2 planes, and the 5.7 eV excitation has less dependence.
Tsuyoshi Idé, Naoki Abe
KDD 2023
Tsuyoshi Idé, Sinem Guven, et al.
IM 2015
Tsuyoshi Idé, Spiros Papadimitriou, et al.
ICDM 2007
Dzung T. Phan, Tsuyoshi Idé
SDM 2019