3 papers
cond-mat.str-el2021
Spin-orbital model for fullerides
Ryuta Iwazaki, Shintaro Hoshino
The multiorbital Hubbard model in the strong coupling limit is analyzed for the effectively antiferromagnetic Hund's coupling relevant to fulleride superconductors with three orbit…
cond-mat.str-el2019
Exact Thermodynamic Properties of (1,1/2) Mixed Diamond Chains with Strong Single-Site Anisotropy
Ryuta Iwazaki, Kazuo Hida
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. M…
cond-mat.supr-con2019
Nature of superconducting fluctuation in photo-excited systems
Ryuta Iwazaki, Naoto Tsuji, Shintaro Hoshino
The photo-excited state associated with superconducting fluctuation above the superconducting critical temperature is studied based on the time-dependent Ginzburg-Laundau app…