116 citations · 301 across the 7 of their papers we have counts for
7 papers
Symmetry of Photoexcited States and Large-Shift Raman Scattering in Two-Dimensional Mott Insulators
T. Tohyama
Symmetry of photoexcited states with two photoinduced carriers in two-dimensional Mott insulators is examined by applying the numerically exact diagonalization method to finite-siz…
Nonlinear Optical Response of Spin Density Wave Insulators
S. A. Jafari, T. Tohyama, S. Maekawa
We calculate the third order nonlinear optical response in the Hubbard model within the spin density wave (SDW) mean field ansatz in which the gap is due to onsite Coulomb repulsio…
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…