quasi-one-dimensional molecular conductors
- TM2X, DCNQI2X, EDO-TTF2X, TTP[FePc(CN)2]2, TTF-CA
- charge order, dimerization, dimer-Mott insulator, antiferromagnetism, tetramerization, spin-Peierls state, phase co-existence/competition, charge frustration, π-d systems, giant negative magnetoresistance, magnetic-field induced charge order, neutral-ionic transition, first-principles model deriviation, stability of magnetic/charge orders by first-principles
quasi-two-dimensional molecular conductors
- ET2X, BETS2X, X[Pd(dmit)2]2
- stripe-type charge order, dimer-Mott insulator, spin gap, charge frustration, melting of charge order, long-period stripe fluctutation, spin liquid, multi-orbital system, fragment model, peculiar charge-lattice order, anisotropic superconductivity, carrier doping, spin-current generation, anomalous Hall effect, first-principles model deriviation
transition metal oxides
- NaV2O5, Fe3O4, PrBa2Cu4O8, LaVO3, doped CuGeO3, Na1/3V2O5, BiNiO3, GdFeO3-type distorted perovskites
- zigzag charge order, spin gap, dimer-Mott insulator, orbital order, dimerization, charge frustration, melting of charge order, Jahn-Teller effect, two phase co-existence/competition and disorder, giant response, coupled ladder, collosal negative thermal expansion, valence transition, spin-current generation, anomalous Hall effect
newly synthesized molecular conductors
- MDT2Xδ, M(tmdt)2, H3(Cat-EDT)2
- incommensurate Mott insulator, anion potential, first-principles model deriviation, single-component molecular metals, π-d system, multi-orbital Mott insulator, intramolecular multi-DOF, hydrogen bonding system, spin liquid
photo-induced phase transition
- melting of charge order, early-stage quantum dynamics, charge frustration, domain wall, nonlinear response, resonant collective excitation, electron-phonon interaction, ultra-short pulse
2-1 Hirosawa, Wako, Saitama 351-0198
Condensed Matter Theory Laboratory,
RIKEN