Zobrazeno 1 - 10
of 507
pro vyhledávání: '"Suzumura Y"'
Publikováno v:
Phys. Rev. B 84, 075450 (2011)
We re-examine the band structure of the stripe charge ordered state of $\alpha$-(BEDT-TTF)$_2$I$_3$ under pressure by using an extended Hubbard model within the Hartree mean-field theory. By increasing pressure, we find a topological transition from
Externí odkaz:
http://arxiv.org/abs/1107.4841
Publikováno v:
Phys. Rev. A 81, 053626 (2010)
We study a mixture of one-dimensional bosons and spinless fermions at incommensurate filling using phenomenological bosonization and Green's functions techniques. We derive the relation between the parameters of the microscopic Hamiltonian and macros
Externí odkaz:
http://arxiv.org/abs/1004.1592
Autor:
Tsuchiizu, M., Suzumura, Y.
Publikováno v:
Phys. Rev. B 77, 195128 (2008)
We investigate the exotic Peierls state in the one-dimensional organic compound (EDO-TTF)_{2}X, wherein the Peierls transition is accompanied by the bending of molecules and also by a fourfold periodic array of charge disproportionation along the one
Externí odkaz:
http://arxiv.org/abs/0801.1891
Publikováno v:
J. Phys. Soc. Jpn. 76 (2007) 114709
We examine a Peierls ground state and its competing metastable state in the one-dimensional quarter-filled Peierls-Hubbard model with the nearest-neighbor repulsive interaction V and the electron-phonon interaction (\propto 1/K with K being the elast
Externí odkaz:
http://arxiv.org/abs/0801.1889
Publikováno v:
Phys. Rev. Lett. 99, 126404 (2007)
The mechanism that drives a metal-insulator transition in an undoped quasi-one-dimensional Mott insulator is examined in the framework of the Hubbard model with two different hoppings t_{perp 1} and t_{perp 2} between nearest-neighbor chains. By appl
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701703
Superconductivity and Density Wave in the Quasi-One-Dimensional Systems: Renormalization Group Study
Autor:
Fuseya, Y., Suzumura, Y.
The anisotropic superconductivity and the density wave have been investigated by applying the Kadanoff-Wilson renormalization group technique to the quasi-one-dimensional system with finite-range interactions. It is found that a temperature (T) depen
Externí odkaz:
http://arxiv.org/abs/cond-mat/0411013
Autor:
Tsuchiizu, M., Suzumura, Y.
Publikováno v:
Phys. Rev. B 72, 075121 (2005)
We have investigated quantum critical behavior in the doped two-leg extended Hubbard ladder, by using a weak-coupling bosonization method. In the ground state, the dominant fluctuation changes from the conventional d-wave-like superconducting (SCd) s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0406430
Autor:
Tsuchiizu, M., Suzumura, Y.
Publikováno v:
J. Phys. Soc. Jpn. 73, 804 (2004)
We investigate electronic properties of the doped two-leg Hubbard ladder with both the onsite and the nearest-neighbor Coulomb repulsions, by using the the weak-coupling renormalization-group method. It is shown that, for strong nearest-neighbor repu
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311534
Publikováno v:
J. Phys. Soc. Jpn. 71, 1174 (2002)
Spin-wave excitations of quarter-filled spin-density-wave state, which coexists with charge ordering, have been studied for one-dimensional extended Hubbard model with the nearest-neighbor repulsive interaction (V) and next-nearest-neighbor one (V_2)
Externí odkaz:
http://arxiv.org/abs/cond-mat/0202227
Autor:
Orignac, E., Suzumura, Y.
Publikováno v:
Eur. Phys. J. B 23 p. 57 (2001)
We study the interplay of Anderson localization and interaction in a two chain Hubbard ladder allowing for arbitrary ratio of disorder strength to interchain coupling. We obtain three different types of spin gapped localized phases depending on the s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0104172