Curvature effects on collective excitations in dumbbell-shaped hollow nanotubes (2009)
Shima, Hiroyuki, Yoshioka, Hideo, Onoe, Jun
We investigate surface-curvature induced alteration in the Tomonaga-Luttinger liquid (TLL) states of a one-dimensional (1D) deformed hollow nanotube with a dumbbell-shape. Periodic variation of the...
Mochizuki, Yoneko, Yoshioka, Hideo
We investigate transport properties of the junctions in which the graphene nanoribbon with the zigzag shaped edges consisting of the $N$ legs is sandwiched by the two normal metals by means of...
Geometry-driven shift in the Tomonaga-Luttinger exponent of deformed cylinders (2009)
Shima, Hiroyuki, Yoshioka, Hideo, Onoe, Jun
We demonstrate the effects of geometric perturbation on the Tomonaga-Luttinger liquid (TLL) states in a long, thin, and hollow cylinder whose radius varies periodically. The variation in the surface...
Geometry-Driven Shift in the Tomonaga-Luttinger Exponent of Deformed Cylinders (2009)
Shima, Hiroyuki, Yoshioka, Hideo, Onoe, Jun
We demonstrate the effects of geometric perturbation on the Tomonaga-Luttinger liquid (TLL) states in a long, thin, hollow cylinder whose radius varies periodically. The variation in the surface...
Yoshioka, Hideo, Higashibata, Satomi
Persistent currents and transport properties are investigated for the nano-graphite ribbons with zigzag shaped edges with paying attention to system length $L$ dependence. It is found that both the...
Charge-Ordered State versus Dimer-Mott Insulator at Finite Temperatures (2007)
Yoshioka, Hideo, Tsuchiizu, Masahisa, Seo, Hitoshi
We theoretically investigate the competition between charge-ordered state and Mott insulating state at finite temperatures in quarter-filled quasi-one-dimensional electron systems, by studying...
Yoshioka, Hideo, Tsuchiizu, Masahisa, Seo, Hitoshi
Finite-temperature charge-ordering phase transition in quasi one-dimensional (1D) molecular conductors is investigated theoretically, based on a quasi 1D extended Hubbard model at quarter filling...
Theoretical Aspects of Charge Ordering in Molecular Conductors (2006)
Seo, Hitoshi, Merino, Jaime, Yoshioka, Hideo, Ogata, Masao
Theoretical studies on charge ordering phenomena in quarter-filled molecular (organic) conductors are reviewed. Extended Hubbard models including not only the on-site but also the inter-site Coulomb...
We investigate Knight shift and nuclear spin relaxation rate in a charge ordered state of the one-dimensional extended Hubbard model with a quarter filled band by using RPA around the mean-field...
Incommensurate Mott Insulator in One-Dimensional Electron Systems close to Quarter Filling (2005)
Yoshioka, Hideo, Seo, Hitoshi, Fukuyama, Hidetoshi
A possibility of a metal-insulator transition in molecular conductors has been studied for systems composed of donor molecules and fully ionized anions with an incommensurate ratio close to 2:1 based...
Tsuchiizu, Masahisa, Yoshioka, Hideo, Suzumura, Yoshikazu
The interplay between quarter-filled and half-filled umklapp scattering has been examined by applying the renormalization group method to a one-dimensional quarter-filled electron system with...
On the Ginzburg-Landau Free Energy of Charge Density Waves with a Three-Dimensional Order (2000)
Hayashi, Masahiko, Yoshioka, Hideo
The effective free energy of a charge density wave (CDW) with a three-dimensional order is derived from a microscopic model (Fr\"olich model) based on the path integral method. Electron hoping and...
Yoshioka, Hideo, Tsuchiizu, Masahisa, Suzumura, Yoshikazu
A one-dimensional electron system at quarter-filling has been examined by applying the renormalization group method to a bosonized model with on-site (U) and nearest-neighbor (V) repulsive...
Transports of Disordered Carbon Nanotubes with Long Range Coulomb Interaction (1999)
Transport properties of disordered carbon nanotubes are investigated with including long range Coulomb interactions. The resistivity and optical conductivity are calculated by using the memory...
Universality of electron correlations in conducting carbon nanotubes (1998)
Odintsov, Arkadi A., Yoshioka, Hideo
Effective low-energy Hamiltonian of interacting electrons in conducting single-wall carbon nanotubes with arbitrary chirality is derived from the microscopic lattice model. The parameters of the...
Crossover between High and Low Energy-States in Two-Coupled Chains of Tomonaga Model (1997)
Tsuchiizu, Masahisa, Yoshioka, Hideo, Suzumura, Yoshikazu
By applying the renormalization group method to two-coupled chains in the Tomonaga model, the role of interchain hopping has been studied in the entire energy region. The energy for a crossover from...
Spin Defects in Spin-Peierls Systems (1997)
Yoshioka, Hideo, Suzumura, Yoshikazu
We examine spin-Peierls systems in the presence of spin defects which are introduced by replacing magnetic ions $Cu^{2+}$ with non-magnetic ones $Zn^{2+}$ in $CuGeO_3$. By using the action for the...
Topological Dislocations and Mixed State of Charge Density Waves (1996)
Hayashi, Masahiko, Yoshioka, Hideo
We discuss the possibility of the ``mixed state'' in incommensurate charge density waves with three-dimensional order. It is shown that the mixed state can be created by applying an electric field...
Properties of Fluctuations in Two Coupled Chains of Luttinger Liquids (1996)
Yoshioka, Hideo, Suzumura, Yoshikazu
Two chains of Luttinger liquids coupled by both interchain hopping and interchain interaction are investigated. A degeneracy of two kinds of dominant states with in phase and out of phase ordering in...
Yoshioka, Hideo, Suzumura, Yoshikazu
We study possible states at low temperatures by applying the renormalization-group method to two chains of Tomonaga-Luttinger liquids with both repulsive intrachain interactions and interchain...
Nakano, Kazuhiko, Inaba, Hiroaki, Nomura, Ryota, Nemoto, Hirotoshi, Takeda, Munehiro, Yoshioka, Hideo, ...
The involvement of oral bacteria in the pathogenesis of cardiovascular diseases has been the focus of attention in many studies, and several periodontal pathogens have been detected in diseased...