Acoustic Polaron in a Ladder-Type Electron-Lattice System : Condensed Matter: Electronic Properties, etc.
スポンサーリンク
概要
- 論文の詳細を見る
The properties of an acoustic polaron are numerically studied for an electron-lattice system with a ladder-type structure where an electron transfer between two chains is allowed. Su-Schrieffer-Heeger's (SSH) model extended to the ladder system is used on the assumption that the periodic boundary condition in the chain direction is satisfied. When the interchain electronic transfer integral t_<x0> is comparable with the intrachain one t_<y0>, the lattice deformation related to the polaron is small compared to the case of one-dimensional systems because the electronic density profile is distributed equally in the two chains, and as a result the effective mass becomes lighter than the single chain case. On the other hand, when t_<x0> is much smaller than t_<y0>, the polaron is localized in one of the two chains instead of being distributed with a homogeneous weight to the two chains. This transition from the homogeneous to an inhomogeneous state is found to occur suddenly at a certain value of t_<x0> as we decrease it, where the critical value of t_<x0> depends on the electron-lattice coupling constant. Analysis of energetics indicates that this is a discontinuous transition similar to the first-order type phase transition. Dynamical simulation where the polaron is accelerated by an electric field shows that the homogeneous-inhomogeneous transition can occur when the velocity of the polaron increases and the polaron width in the chain direction decreases.
- 社団法人日本物理学会の論文
- 2000-10-15
著者
-
Ono Yoshiyuki
Department Of Physicis Toho University
-
OOTOMO Fumitarou
Department of Physics, Toho University
-
Ootomo Fumitarou
Department Of Physics Toho University
関連論文
- Scaling Behavior of Level Statistics in Quantum Hall Regime
- Metal-Insulator Transition in Three-Dimensional Systems with Random Phase Hopping
- Level Spacing Distribution and Δ_3-Statistics of Two Dimensional Disordered Electrons in Strong Magnetic Field
- Anderson Transition in Three-Dimensional Systems in Strong Magnetic Fields
- Inverse Participation Number and Fractal Dimensionality of Electronic States in a Two Dimensional System in Strong Perpendicular Magnetic Field
- Conductance Fluctuations in Two- Dimensional Systems in Random Magnetic Fields
- Study of Quantum Hall Effect by Random Matrix Model
- Electron Diffusion in a Two-Dimensional Disordered Symplectic System with Electron-Phonon Interactions(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Electron Transport and Time-Dependent Perturbation in a Two-Dimensional Symplectic System
- Electron Transport and Time-Dependent Perturbation in a Two-Dimensional Symplectic System
- Phonon Dispersion Relations in Two-dimensional Peierls Phase(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Multi Mode Phonon Softening in Two-Dimensional Electron-Lattice System
- Critical Level Statistics in Two-Dimensional Disordered Electron Systems
- Anisotropic Fractal Dimensionality of Electronic States in Confined Two Dimensional System Subject to Strong Magnetic Field
- Hall Current Distributions in Quantum Hall Effect on Finite Cylinder Surface. II. Gate Barrier Effect
- Hall Current Distributions in Quatum Hall Effect on Finite Cylinder Surface
- Quantum Hall Conductivity and the Electronic States in Cylinder Geometry with Finite Width
- Fractionally Charged States in Quarter-Filled Electron-Phonon Systems^*
- A Numerical Study of Fractionally Charged States in One-Dimensional Electron-Phonon Systems with Commensurability 3
- Structure of Charge Density Waves in Nearly Quarter-Filled One-Dimensional Electron-Phonon Systems
- Semi-Phenomenological Analysis of Dynamics of Nonlinear Excitations in One-Dimensional Electron-Phonon System
- Motion of Charged Soliton in Polyacetylene Due to Electric Field. IV. : Damping of Soliton Velocity
- Motion of Charged Soliton in Polyacetylene Due to Electric Field.III. : Energetics
- Motion of Charged Soliton in Polyacetylene Due to Electric Field.II. : Behavior of Width
- Correlation Effects on the Spin Soliton in Polyacetylene
- Correlation Effects on the Phonons Localized around a Soliton or a Polaron in Polyacetylene
- Transport in Two Dimensional Periodic Magnetic Fields
- Potential Range Dependence of Mixing of Edge States in Quantum Hall Effect
- Scaling Behavior of Level Spacing Distribution in the Lowest Landau Band of Two- Dimensional Disordered Electrons
- Effects of Impurities in Polyacetylene─Bond-Type Short-Ranged Impurities
- Theory of Raman Scattering with Nonlinear Excitations in a Continuum Model of trans-Polyacetylene
- Effects of Impurities in Polyacetylene : Site-Type Short-Ranged Impurities
- Infrared Activity of Phonons around a Soliton in trans-(CH)_X and (CD)_x : The Origin of the New IR Active Modes
- Phonons around a Soliton in a Continuum Model of t-(CH)_x
- Phonons around a Soliton in trans-(CH)_x-Dependence on the Electron Momentum Cut-Off-
- Linear Mode Analysis around a Polaron in trans-Polyacetylene (CH)_x
- Linear Mode Analysis Around a Soliton in Trans-polyacetylene (CH)_x
- Fractionally Charged States in One-Dimensional Electron-Phonon Systems with Commensurability 3
- Multimode Peierls State in a Modified Square-Lattice SSH Model(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Magnetic Field Induced Localization in Three Dimensional Metallic Systems
- Interchain Pair Hopping of Solitons and Polarons Via Dopants in Polyacetylene
- Photogeneration Dynamics of Nonlinear Excitations in Polyacetylene : Condensed Matter: Electronic Properties, etc.
- Phonon Softening in Two-Dimensional Electron-Lattice System with Anisotropy(Condensed matter : electronic structure and electrical, magnetic, and optical properties)
- Dynamics of an Acoustic Polaron in One-Dimensional Electron-Lattice System
- Thermomagnetic Coefficients in a Quantizing Magnetic Field. I. : Electronic Component
- Degeneracy of Ground State in Two-Dimensional Electron-Lattice System
- Peierls Distortion in Two-Dimensional Tight-Binding, Model : Condensed Matter: Electronic Properties, etc.
- 28. Two-Dimensional Anderson Localization under Strong Maqnetic Fields(Theories,IV. Quantized Hall Effects)
- Berry's Phase in the Multimode Peierls States
- Collisions among Acoustic Polarons and Acoustic Bipolarons in One-Dimensional Electron-Lattice System
- Orbital Magnetization in Quantum Hall Regime
- BOW-SDW Transition in the Two-dimensional Peierls-Hubbard Model(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Self-Consistent Treatment of Two-Dimensional Anderson Localization in Magnetic Fields
- Magnetoresistance of Two-Dimensional Anderson Localized System in Self-Consistent Treatment
- Two-Dimensional Spin-Peierls State With a Multimode Lattice Distortion (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Charge Propagation on Branching off Conjugated Polymers
- Kinks in One-Dimensional Electron-Phonon System with Commensurability 3 : Coupling Constant Dependence
- Electric Conduction Due to Charged Solitons in Polyacetylene
- Activation Energy of a Charged Soliton Pinned by Dopants in Polyacetylene
- An Acoustic Polaron in a Quasi-One-Dimensional System with Branching-Off Structure(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Anisotropy of Ultrasonic Attenuation Coefficient in Dirty Metals under Strong Magnetic Fields
- Self-Consistent Treatment of Dynamical Diffusion Coefficient of Two Dimensional Random Electron System under Strong Magnetic Fields.III
- Quantization of Phonons and Raman Scattering in a Continuum Model of Trans-Polyacetylene
- Phonons around a Soliton and a Polaron in Su-Schriffer-Heeger's Model of trans-(CH)_x
- Self-Consistent Treatment of Dynamical Diffusion Coefficient of Two Dimensional Random Electron System under Strong Magnetic Fields.II
- Acoustic Polaron in a Ladder-Type Electron-Lattice System : Condensed Matter: Electronic Properties, etc.
- Optical Absorption by Phonons around a Soliton in a Model of trans-Polyacetylene (CH)_x
- Photogeneration Dynamics of a Soliton Pair in Polyacetylene
- Dynamics of an Acoustic Bipolaron in One-Dimensional Electron-Lattice Systems : Condensed Matter: Electronic Properties, etc.
- Multi Mode Phonon Softening in Two-Dimensional Electron-Lattice System
- Solitons and Their Dynamics in One-Dimensional SDW Systems
- Self-Consistent Treatment of Dynamical Diffusion Coefficient of Two Dimensional Random Electron System under Strong Magnetic Fields
- The Magnetothermal Resistivity of an Antiferromagnetic Insulator at Low Temperatures. I. An Ising system, Molecular-Field Approximation
- Peierls Transition in Non-Half-Filled Tight-Binding Model. : II. Physical Quantities in Commensurate Phase
- Amplitude Mode around a Moving Soliton in Polyacetylene
- Microscopic Theory of Thermal Conductivity in an Electron-Phonon System
- Acoustic Polaron in a Two-Dimensional Electron-Lattice System
- Energy Dependence of Localization Length of Two-Dimensional Electron System Moving in a Random Potential under Strong Magnetic Fields
- Motion of Charged Soliton in Polyacetylene Due to Electric Fielld
- The Magnetothermal Resistivity of an Antiferromagnetic Insulator at Low Temperatures. II. A Heisenberg System, Spin-Wave Approximation
- Dynamics of a Fractionally Charged Soliton in a One-Dimensional Electron-Lattice System
- Localization of Electrons under Strong MAgnetic Fields in a Two-Dimensional System
- A Calculation of a Phonon Damping in a Dirty Normal Metal
- Electric Conduction Due to an a Acoustic Bipolaron in One-Dimensional Electron-Lattice System
- Acoustic Polaron in a Two-Dimensional Electron-Lattice System
- Nonlinear Excitations in Discrete Model of Conjugated Polymers
- An Acoustic Polaron in a Quasi-One-Dimensional System with Branching-Off Structure(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)