Mean-Field Analysis of Electric Field Effect on Charge Orders in Organic Conductors
スポンサーリンク
概要
- 論文の詳細を見る
In order to investigate charge-ordering phenomena under an electric field, the static nonequilibrium Hartree approximation (SNHA) method is formulated on the basis of the nonequilibrium Green's functions introduced by Keldysh. By applying the SNHA to the 3/4-filling extended Hubbard model on an anisotropic triangular lattice, we study the stabilities and amplitudes of 3-fold and horizontal charge orders in $\theta$- and $\theta_{d}$-(BEDT-TTF)2$X$ salts under an electric field. The obtained results show that an electric field stabilizes the 3-fold state but not the horizontal state. The amplitude of the 3-fold state tends to decrease with increasing electric field, whereas that of the horizontal state does not change.
- Physical Society of Japanの論文
- 2010-02-15
著者
-
Yukawa Emi
Department Of Physics School Of Science University Of Tokyo
-
Ogata Masao
Department Of Basic Science Graduate School Of Arts And Science University Of Tokyo
-
Yukawa Emi
Department of Physics, University of Tokyo, Bunkyo, Tokyo 113-0033, Japan
関連論文
- 1P113 Backbone NMR assignment and hydrogen exchange of goat α-lactalbumin(3. Protein folding and misfolding (1),Poster Session,Abstract,Meeting Program of EABS & BSJ 2006)
- Numerical Study of Current-Induced Domain-Wall Dynamics : Crossover from Spin Transfer to Momentum Transfer(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Formation of Non-Unitary State near the Upper-Critical Field of Sr_2RuO_4(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Precise Control of Band Filling in Na_xCoO_2(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Human Herpesvirus 6 in Hematological Malignancies
- Fermi-Surface Reconstruction in the Periodic Anderson Model(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Normal-State Spin Dynamics of Five-Band Model for Iron Pnictides
- Quantum Monte Carlo Study of the Quasi-One-Dimensional Superconductivity(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- "Unscreening" Effect of Coulomb Interaction on Fe-Pnictide Superconductor(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Phase Diagram of the Triangular t-J Model with Multiple Spin Exchange in the Doped-Mott Region(Condensed matter: structure and mechanical and thermal properties)
- Mott Transitions and d-Wave Superconductivity in Half-Filled-Band Hubbard Model on Square Lattice with Geometric Frustration(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Variational Monte Carlo Studies of Pairing Symmetry for the t-J Model on a Triangular Lattice(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Superconductivity due to Charge Fluctuation in θ-Type Organic Conductors(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Superconductivity in Na_xCoO_2・yH_2O due to Charge Fluctuation (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Role of Spin-Orbit Coupling on the Spin Triplet Pairing in Na_xCoO_2・yH_2O II : Multiple Phase Diagram under the Magnetic Field(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Role of Spin-Orbit Coupling on the Spin Triplet Pairing in Na_xCoO_2・yH_2O : I. d-Vector under Zero Magnetic Field(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Ferromagnetic and Triplet-Pairing Instabilities Controlled by Trigonal Distortion of CoO_6 Octahedra in Na_xCoO_2・yH_2O(Condensed Matter : Structure, Mechanical and Thermal Properties)
- Multi-orbital Analysis on the Superconductivity in Na_xCoO_2・yH_2O(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Brownian Motion of a Soliton in trans-Polyacetylene.I.Random Walk Mechanism
- Soliton-Phonon Interactions in trans-Polyacetylene
- Local Density of States near the Surface of a d+s-Wave Superconductor in the Two-Dimensional t-J Model : Condensed Matter: Electronic Properties, etc.
- Quasiparticle Properties around a Nonmagnetic Impurity in the Superconducting State of the Two-Dimensional t-J Model
- Drug-induced hypersensitivity syndrome due to carbapenem antibiotics
- Crossover of Superconducting Properties and Kinetic-Energy Gain in Two-Dimensional Hubbard Model (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Bilateral Ocular Adnexal Mucosa-Associated Lymphoid Tissue Lymphoma
- Novel Charge Order and Superconductivity in Two-Dimensional Frustrated Lattice at Quarter Filling(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Susceptibilities of Sr (Cu_Zn_x)_2O_3 Studied by Quantum Monte Carlo Simulation
- Coexistence of SDW and CDW in Quarter-Filled Organic Conductors
- Deformation of Electronic Structures Due to CoO_6 Distortion and Phase Diagrams of Na_xCoO_2・yH_2O(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Development of Superconducting Correlation at Low Temperatures in the Two-dimensional t-J Model(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- High Pressure Effects on the Quantum Tunneling of Magnetization in Mn_ Acetate
- Phase Diagram and Pairing Symmetry of the Two-Dimensional t-J Model by a Variation Theory
- Specific Heat and Superfluid Density for Possible Two Different Superconducting States in Na_xCoO_2・yH_2O(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Midgap States in Disordered Spin-Peierls Systems
- Coexistence of SDW and Purely-Electronic CDW in Quarter-Filled Organic Conductors
- Ferromagnetic Ising Spin Chains Emerging from the Spin Ice under Magnetic Field(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Increase of Superconducting Correlation due to Dimensionality Change in Quasi-One-Dimensional Conductors(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Brownian-Like Motion of a One-Dimensional φ^4 Kink and Fluctuation-Dissipation Theorem
- Coexistence of Charge Order and Spin-Peierls Lattice Distortion in One-Dimensional Organic Conductors
- Superconducting States in Frustrating t-J Model : A Model Connecting High-T_c Cuprates, Organic Conductors and Na_xCoO_2
- Rare Primary Effusion Lymphoma Associated with HHV-8 in Japan
- Charge Fluctuations in Geometrically Frustrated Charge Ordering System(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Theoretical Aspects of Charge Ordering in Molecular Conductors
- Charge-Fluctuation-Induced Superconducting State in Two-Dimensional Quarter-Filled Electron Systems (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Kinetic Energy, Condensation Energy, Optical Sum Rule and Pairing Mechanism in High-T_c Cuprates(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Theory of the Quasiparticle Spectra around a Vortex in the Two-Dimensional t-J Model
- Theory of Local Density of States of d_-Wave Superconducting State Near the Surfaces of the t-J Model
- Superconductivity and Antiferromagnetism in an Extended Gutzwiller Approximation for t-J Model : Effect of Double-Occupancy Exclusion
- Microscopic Identification of the D-vector in Triplet Superconductor Sr_2RuO_4
- Invasive Pulmonary Aspergillosis with Hematological Malignancy Caused by Aspergillus terreus and in vitro Susceptibility of A. terreus Isolate to Micafungin
- Single-Impurity Problem in Iron-Pnictide Superconductors
- Three-Dimensional Dirac Electrons at the Fermi Energy in Cubic Inverse Perovskites: Ca3PbO and Its Family
- Effects of Charge Density Modulation on Incommensurate Antiferromagnetism:Ginzburg-Landau Study
- Successful Treatment of Refractory Enteropathy-Associated T-Cell Lymphoma Using High-Dose Chemotherapy and Autologous Stem Cell Transplantation
- Spin-Hall Effect and Diamagnetism of Dirac Electrons
- Ferromagnetism on the Frustrated Lattices (Condensed Matter: Electric Structure, Electrical, Magnetic and Optical Properties)
- Theory of Mechanism of \pi--d Interaction in Iron--Phthalocyanine
- Recent Topics of Organic Superconductors
- Crossover between BCS Superconductor and Doped Mott Insulator of d-Wave Pairing State in Two-Dimensional Hubbard Model
- Spin-Polarization in Magneto-Optical Conductivity of Dirac Electrons
- Momentum Transfer between a Kink and a Phonon in the One-Dimensional φ^4System
- Magnetic Conversion Induced by Non-Magnetic Impurities in a Molecular Spin Ladder System, p-EPYNN·[Ni(dmit)2]
- Simple Real-Space Picture of Nodeless and Nodal $s$-Wave Gap Functions in Iron Pnictide Superconductors
- Thermoelectric Transport Coefficients for Massless Dirac Electrons in Quantum Limit
- Mean-Field Analysis of Electric Field Effect on Charge Orders in Organic Conductors
- Spectral Functions of One-Dimensional Electron Systems with Ising-Like Spin Gap
- Viscosity of a Kink in the One-Dimensional φ^4 System
- Mean-Field Study of Charge Order with Long Periodicity in θ-(BEDT-TTF)_2X(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)