83 citations · 162 across the 4 of their papers we have counts for
4 papers
Exact diagonalization study of optical conductivity in two-dimensional Hubbard model
T. Tohyama, Y. Inoue, K. Tsutsui +1
The optical conductivity σ(ω) in the two-dimensional Hubbard model is examined by applying the exact diagonalization technique to small square clusters with periodic boundary condi…
Theoretical study of angle-resolved two-photon photoemission in two-dimensional insulating cuprates
H. Onodera, T. Tohyama, K. Tsutsui +1
We propose angle-resolved two-photon photoemission spectroscopy (AR-2PPES) as a technique to detect the location of the bottom of the upper Hubbard band (UHB) in two-dimensional in…
Momentum Dependence of Charge Excitations in the Electron-Doped Superconductor Nd1.85Ce0.15CuO4: a RIXS Study
K. Ishii, K. Tsutsui, Y. Endoh +9
We report a resonant inelastic x-ray scattering (RIXS) study of charge excitations in the electron-doped high-Tc superconductor Nd1.85Ce0.15CuO4. The intraband and interband excita…
Mott gap excitations in twin-free YBa2Cu3O7-d (Tc = 93 K) studied by RIXS
K. Ishii, K. Tsutsui, Y. Endoh +9
Mott gap excitations in the high-Tc superconductor of the optimal doped YBa2Cu3O7-d (Tc = 93 K) have been studied by the resonant inelastic x-ray scattering method. Anisotropic spe…