Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Iwazaki, Ryuta"'
Publikováno v:
Phys. Rev. B 108, L241108 (2023)
We present a framework for analyzing Mott insulators using a material-based tight-binding model. We start with a realistic multiorbital Hubbard model and derive an effective model for the localized electrons through the second-order perturbation theo
Externí odkaz:
http://arxiv.org/abs/2301.09824
Autor:
Iwazaki, Ryuta, Hoshino, Shintaro
Publikováno v:
Phys. Rev. B 103, 235145 (2021)
The multiorbital Hubbard model in the strong coupling limit is analyzed for the effectively antiferromagnetic Hund's coupling relevant to fulleride superconductors with three orbitals per molecule. The localized spin-orbital model describes the therm
Externí odkaz:
http://arxiv.org/abs/2103.04960
Autor:
Iwazaki, Ryuta, Hida, Kazuo
Publikováno v:
J. Phys. Soc. Jpn., 88, 095001 (2019)
The ground states and finite-temperature properties of mixed diamond chains with spins 1 and 1/2 are investigated in the limit of strong easy-axis anisotropy on the spin-1 sites. Magnetization curves, entropy, specific heat and magnetic susceptibilit
Externí odkaz:
http://arxiv.org/abs/1907.10467
Publikováno v:
Phys. Rev. B 100, 104521 (2019)
The photo-excited state associated with superconducting fluctuation above the superconducting critical temperature $T_c$ is studied based on the time-dependent Ginzburg-Laundau approach. The excited state is created by an electric-field pulse and is
Externí odkaz:
http://arxiv.org/abs/1904.05820