79 citations · 280 across the 8 of their papers we have counts for
14 papers · 1 filter
Phase competitions and coexistences in quasi-one-dimensional molecular conductors: exact diagonalization study
Yuichi Otsuka, Hitoshi Seo, Yukitoshi Motome +1
We investigate ground state properties of a quasi-one-dimensional electron-lattice coupled model for quarter-filled molecular conductors. The effective one-dimensional extended Hub…
Spiral charge frustration in molecular conductor (DI-DCNQI)2Ag
Hitoshi Seo, Yukitoshi Motome
We theoretically study the effect of spiral-type charge frustration in a quasi-one-dimensional molecular conductor (DI-DCNQI)2Ag. We clarify how the spiral frustration in the inter…
Finite-Temperature Phase Diagram of Quasi-One-Dimensional Molecular Conductors: Quantum Monte Carlo Study
Yuichi Otsuka, Hitoshi Seo, Yukitoshi Motome +1
Finite-temperature phase transitions in quasi-one-dimensional quarter-filled systems are investigated by the extended Hubbard model with electron-lattice coupling. Using a quantum…
Single-Component Molecular Metals as Multiband π-d Systems
Hitoshi Seo, Shoji Ishibashi, Yoshinori Okano +4
Electronic states of single-component molecular metals M(tmdt)2 (M = Ni, Au) are studied theoretically. We construct an effective three-band Hubbard model for each material by nume…
Charge-Ordered State versus Dimer-Mott Insulator at Finite Temperatures
Hideo Yoshioka, Masahisa Tsuchiizu, Hitoshi Seo
We theoretically investigate the competition between charge-ordered state and Mott insulating state at finite temperatures in quarter-filled quasi-one-dimensional electron systems,…
Finite-temperature phase transitions in quasi-one-dimensional molecular conductors
Hitoshi Seo, Yukitoshi Motome, Takeo Kato
Phase transitions in 1/4-filled quasi-one-dimensional molecular conductors are studied theoretically on the basis of extended Hubbard chains including electron-lattice interactions…