Polaronic States with Spin-Charge-Coupled Excitation in a One-Dimensional Dimerized Mott Insulator K-TCNQ(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
スポンサーリンク
概要
- 論文の詳細を見る
We discuss photogenerated midgap states of a one-dimensional (1D) dimerized Mott insulator, potassium-tetracyanoquinodimethane (K-TCNQ). Two types of phonon modes are taken into account: intermolecular and intramolecular vibrations. We treat these phonon modes adiabatically and analyze a theoretical model by using the density-matrix renormalization group (DMRG). Our numerical results demonstrate that the intermolecular lattice distortion is necessary to reproduce the photoinduced midgap absorption in K-TCNQ. We find two types of midgap states. One is a usual polaronic state characterized by a localized elementary excitation. The other is superposition of two types of excitations, a doped-carrier state and a triplet-dimer state, which can be generally observed in 1D dimerized Mott insulators, not limited to K-TCNQ.
- 2008-07-15
著者
-
YONEMITSU Kenji
Institute for Molecular Science
-
MAESHIMA Nobuya
Department of Chemistry, Tohoku University
-
Maeshima Nobuya
Department Of Chemistry Tohoku University
-
Maeshima Nobuya
Department Of Chemistry Tohoku University:institute For Molecular Science:(present Office)institute
-
Yonemitsu Kenji
Institute For Molecular Science:department Of Functional Molecular Science Graduate University For A
関連論文
- Spin and Charge Fluctuations and Lattice Effects on Charge Ordering in α-(BEDT-TTF)_2I_3(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Magnetic Field versus Temperature Phase Diagram of the Spin-1/2 Alternating-Bond Chain Compound F_5PNN
- Nonequilibrium Green's-Function Approach to the Suppression of Rectification at Metal-Mott-Insulator Interfaces
- Polaronic States with Spin-Charge-Coupled Excitation in a One-Dimensional Dimerized Mott Insulator K-TCNQ(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Charge Order with Structural Distortion in Organic Conductors : Comparison between :θ-(ET)_2RbZn(SCN)_4 and α-(ET)_2I_3(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- On Thermo- and Photo-Induced Symmetry-Broken Transformation in Spin-Crossover Complex : Cooperative Activation (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Theory of Photoinduced Phase Transitions(Photo-Induced Phase Transitions and their Dynamics)
- Photoinduced Metallic Properties of One-Dimensional Strongly Correlated Electron Systems(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Mechanism of Ambipolar Field-Effect Carrier Injections in One-Dimensional Mott Insulators(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Phase Transition in a One-dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : III. Interference Caused by a Double Pulse(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Phase Transition in a One-dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : II. Linear Behavior in Neutral-to-Ionic Transition(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Phase Transition in a One-dimensional Extended Peierls-Hubbard Model with a Pulse of Oscillating Electric Field : I. Threshold Behavior in Ionic-to-Neutral Transition(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Charge-Transfer Excitations in One-Dimensional Dimerized Mott Insulators(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Coexistence of SDW and Purely-Electronic CDW in Quarter-Filled Organic Conductors
- Field-Induced Phase Transitions and Long-Range Orders in the S=1/2 Spin Bond-Alternating Chain with Frustrating Interaction (Statistical Physics of Quantum Systems--novel orders and dynamics)
- Stable Optimization of a Tensor Product Variational State(Condensed Matter and Statistical Physics)
- Stable Optimization of a Tensor Product Variational State
- Matrix Product State Approximation for the Maximum-Eigenvalue Eigenstate of the Quantum Transfer Matrix
- Two-Dimensional Tensor Product Variational Formulation
- Effects of Electron-Lattice Coupling on Charge Order in θ-(ET)_2X(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Quasi-Particle Band Structure and Gapless Soperconductivity in the Vortex-Lattice State
- Nonlinear conduction by melting of stripe-type charge order in organic conductors with triangular lattices
- Photoexcitation-Energy-Dependent Transition Pathways from a Dimer Mott Insulator to a Metal
- Effects of Lattice and Molecular Phonons on Photoinduced Neutral-to-Ionic Transition Dynamics in Tetrathiafulvalene-p-chloranil
- Charge, Lattice, and Spin Dynamics in Photoinduced Phase Transitions from Charge-Ordered Insulator to Metal in Quasi-Two-Dimensional Organic Conductors
- Nonequilibrium Green's-Function Approach to the Suppression of Rectification at Metal–Mott-Insulator Interfaces
- Growth Dynamics of Photoinduced Domains in Two-Dimensional Charge-Ordered Conductors Depending on Stabilization Mechanisms
- Erratum to Two Papers on Charge Order with Structural Distortion in Organic Conductors