149 citations · 554 across the 28 of their papers we have counts for
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Light-induced switching of magnetic order in the anisotropic triangular-lattice Hubbard model
Hayato Kobayashi, Ryo Fujiuchi, Koudai Sugimoto +1
The time-dependent exact-diagonalization method is used to study the light-induced phase transition of magnetic orders in the anisotropic triangular-lattice Hubbard model. Calculat…
Successive magnetic transitions in heavy fermion superconductor Ce3PtIn11 studied by 115In nuclear quadrupole resonance
H. Fukazawa, K. Kumeda, N. Shioda +6
Nuclear quadrupole resonance (NQR) measurements were performed on the heavy fermion superconductor Ce3PtIn11 with Tc = 0.32 K. The temperature dependence of both spin-lattice relax…
Pressure-Induced Restoration of the Reversed Crystal-Field Splitting in -SrCrO
Ryo Takahashi, Tomoki Yamaguchi, Koudai Sugimoto +3
Motivated by an experimental finding that the successive phase transitions in -SrCrO observed at ambient pressure ceases to exist under high pressures, we carry out the…
Finite-temperature properties of excitonic condensation in the extended Falicov-Kimball model: Cluster mean-field-theory approach
Masahiro Kadosawa, Satoshi Nishimoto, Koudai Sugimoto +1
We study the electron-hole pair (or excitonic) condensation in the extended Falicov-Kimball model at finite temperatures based on the cluster mean-field-theory approach, where we m…
Emergence of pure spin current in doped excitonic magnets
Shunsuke Yamamoto, Koudai Sugimoto, Yukinori Ohta
An excitonic magnet hosts a condensate of spin-triplet excitons composed of conduction-band electrons and valence-band holes, and may be described by the two-orbital Hubbard model.…
Superconductivity and charge density wave under a time-dependent periodic field in the one-dimensional attractive Hubbard model
Ryo Fujiuchi, Tatsuya Kaneko, Koudai Sugimoto +2
We investigate the competition between superconductivity (SC) and charge density wave (CDW) under a time-dependent periodic field in the attractive Hubbard model. By employing the…