34 citations · 125 across the 8 of their papers we have counts for
8 papers
Photoexcitation-Energy-Dependent Transition Pathways from a Dimer Mott Insulator to a Metal
Kenji Yonemitsu, Satoshi Miyashita, Nobuya Maeshima
We theoretically study pump-photon-energy-dependent pathways of a photoinduced dimer-Mott-insulator-to-metal transition, on the basis of numerical solutions to the time-dependent S…
Charge, Lattice, and Spin Dynamics in Photoinduced Phase Transitions from Charge-Order-Insulator to Metal in Quasi-Two-Dimensional Organic Conductors
Satoshi Miyashita, Yasuhiro Tanaka, Shinichiro Iwai +1
To elucidate different photoinduced melting dynamics of charge orders observed in quasi-two-dimensional organic conductors -(BEDT-TTF)RbZn(SCN) and -(BEDT-TTF)I…
Mott insulating state in a quarter-filled two-orbital Hubbard chain with different bandwidths
S. Miyashita, Y. Yamashita, K. Yonemitsu +2
We investigate the ground-state properties of the one-dimensional two-band Hubbard model with different bandwidths. The density-matrix renormalization group method is applied to ca…
Spin and Charge Fluctuations and Lattice Effects on Charge Orders in α-(BEDT-TTF)_2I_3
Satoshi Miyashita, Kenji Yonemitsu
The effects of spin and charge fluctuations and electron-phonon couplings on charge ordering in α-(BEDT-TTF)_2I_3 (BEDT-TTF=bis(ethylenedithio)-tetrathiafulvalence) are investigate…
Charge ordering in θ-(BEDT-TTF)2RbZn(SCN)4: Cooperative effects of electron correlations and lattice distortions
Satoshi Miyashita, Kenji Yonemitsu
Combined effects of electron correlations and lattice distortions are investigated on the charge ordering in θ-(BEDT-TTF)2RbZn(SCN)4 theoretically in a two-dimensional 3/4-filled e…
One-Dimensional S=1 Spin-Orbital Model with Uniaxial Single-Ion Anisotropy
Satoshi Miyashita, Norio Kawakami
We investigate ground-state properties of a one-dimensional S=1 spin-orbital model with or without uniaxial single-ion anisotropy. By means of the density matrix renormalization gr…