Periodic Anderson Model with Degenerate Orbitals : Linearized Dynamical Mean Field Theory Approach(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)

スポンサーリンク

概要

• 論文の詳細を見る

• We investigate a multi-orbital extension of the periodic Anderson model with particular emphasis on electron correlations including orbital fluctuations. By means of a linearized version of the dynamical mean-field theory, we compute the renormalization factor, the density of states, the spectral gap and the local correlation functions for a given set of the intra- and inter-orbital Coulomb interactions as well as the Hund coupling. It is found that when a certain condition is met for the intra- and inter-orbital interactions for f electrons, orbital fluctuations are enhanced, thereby enlarging the Kondo insulating gap. This effect is suppressed in the presence of the Hund coupling. We also clarify how the Kondo insulator is continuously changed to the Mott insulator when electron correlations among conduction electrons are increased.

• 社団法人日本物理学会の論文
• 2004-07-15

著者

• KOGA Akihisa

  Department of Applied Physics, Osaka University

• Koga Akihisa

  Department Of Applied Physics Osaka University

• KAWAKAMI Norio

  Department of Applied Physics, Osaka University

• Kawakami Norio

  Department Of Applied Physics Osaka University

• OHASHI Takuma

  Department of Physics, Osaka University

• Ohashi T

  Department Of Applied Physics Osaka University

• Ohashi Takuma

  Department Of Applied Physics Osaka University

• SATO Ryota

  Department of Applied Physics, Osaka University

• Koga A

  Department Of Physics Kyoto University

• Sato Ryota

  Department Of Applied Physics Osaka University

• Koga Akihisa

  Department of Physics, Kyoto University

関連論文

• Quantum Phase Competition in Antiferromagnetic Spin-1 Ladders
• Re-Entrant Quantum Phase Transitions in Antiferromagnetic Spin-1 Ladders(Condensed Matter : Electronic Structure, Electrical, Mgagnetic and Optical Properties)
• Thermoelectric Power of Ce Impurity in Cubic Crystalline Field at Low Temperatures : II. LOW TEMPERATURE PROPERTIES OF SOLIDS : Heavy Electrons : Theory
• Mutation spectrum of the G6PC gene in 65 Chinese patients with glycogen storage disease type Ia and prenatal diagnosis in 11 GSD Ia Families
• Hole-Doping Effects on a Frustrated Spin Ladder
• First-Order Phase Transitions in Frustrated Spin Systems
• Orbital Order in a Quasi-One-Dimensional Spin-Orbital Model
• Hole Dynamics in the Orthogonal-Dimer Spin System (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
• Hole-Doping Effects on a Two-Dimensional Kondo Insulator (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
• Hole-Doping Effects on a Two-Dimensional Kondo Insulator
• Numerical Renormalization Group Approach to a Quantum Dot Coupled to Normal and Superconducting Leads(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Thermoelectric Power of the Anderson Model at Low Temperatures
• Finite-Temperature Mott Transition in Two-Dimensional Frustrated Hubbard Models(Interaction and Nanostructural Effects in Low-Dimensional Systems)
• Thermopower of Multiorbital Kondo Effect via Single Quantum Dot System at Finite Temperatures(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Tomonaga's Theory for Collective Motion of Fermions : Basic Concept of One-Dimensional Correlated Electrons(YUKAWA-TOMONAGA CENTENNIAL SYMPOSIUM Progress in Modern Physics)
• Microscopic Mechanism and Pairing Symmetry of Superconductivity in the Noncentrosymmetric Heavy Fermion Systems CeRhSI_3 and CeIrSi_3(Condensed matter : electronic structure and electrical, magnetic, and optical properties)
• Magnetic Properties of the Extended Periodic Anderson Model(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Periodic Anderson Model with Degenerate Orbitals : Linearized Dynamical Mean Field Theory Approach(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Effects of Degenerate Orbitals on the Hubbard Model
• Effects of Degenerate Orbitals on the Hubbard Model
• Cellular Dynamical Mean Field Study on Two-Orbital Hubbard Model with Different Bandwidths
• Three-Orbital Kondo Effect in Single Quantum Dot System with Plural Electrons(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Susceptibility of a Magnetic Impurity in Two-Dimensional Disordered Electron Systems(Condensed Matter : Electronic Structure, Electrical, Mgagnetic and Optical Properties)
• Mott Transition in the Hubbard Model on Checkerboard Lattice(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Frustrated Ising Model on the Garnet Lattice(Condensed Matter : Structure, Mechanical and Thermal Properties)
• Quantum Phase Transitions of the S = 1 Shastry-Sutherland Model
• Hole-Doping Effects on a Frustrated Spin Ladder
• Quantum Phase Transitions in Two-Dimensional Spin Systems with Ladder,Plaquette and Mixed-Spin Structures
• Two-Dimensional Quantum Spin Systems with Ladder and Plaquette Structures
• Mixed-Spin Ladders and Plaquette Spin Chains
• NMR Relaxation Rate for One-Dimensional Multicomponent Spin-Orbital Systems : Condensed Matter: Electronic Properties, etc.
• Dynamical Properties of One-Dimensional Multicomponent Quantum Liquids in Metallic Phase
• Gauge Fluctuations due to Dilute Skyrmions in the Quantum Hall State
• Ground State of Anderson Hamiltonian
• Thermodynamics of the Highly Correlated Degenerate Anderson Model in a Crystal Field
• Ground State of Asymmetric Anderson Hamiltonian
• Low Temperature Thermodynamics of the Degenerate Anderson Model with a Strong Correlation
• Low Temperature Thermodynamics of Asymmetric Anderson Model
• Magnetic Properties of Anderson Model at Zero Temperature
• Supersolid State of Ultracold Fermions in Optical Lattice(Condensed matter: structure and mechanical and thermal properties)
• Mott Transitions in Two-Orbital Hubbard Systems(Yukawa International Seminar 2004 (YKIS2004) Physics of Strongly Correlated Electron Systems)
• Phase Diagram of Orbital-Selective Mott Transitions at Finite Temperatures(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Critical Properties in Photoemmision Spectra for One Dimensional Orbitally Degenerate Mott Insulator
• Critical Properties of Spectral Functions for the 1D Anisotropic t-J Models with an Energy Gap
• A diabatic Ground-State Properties of Spin Chains with Twisted Boundary Conditions
• The Entering of Indium-111 and Iron-59 into the Hepatocytes from Partially Hepatectomized Rats Differ from That of Gallium-67(Biochemistry/Molecular Biology)
• Metal-Insulator Transition in the Two-Orbital Hubbard Model at Fractional Band Fillings : Self-Energy Functional Approach(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Higher-Spin Generalization of Fractional Exclusion Statistics
• Correlation Effects on the Double Exchange Model in a Ferromagnetic Metallic Phase : Condensed Matter: Electronic Properties, etc.
• Electron Transport through T-Shaped Double-Dots System
• Kondo Effect in a Quantum Dot with an Even Number of Electrons
• Heavy Quasi-Particles in the Two-Orbital Hubbard Model
• Magnetic and Critical Properties of Alternating Spin Chain with S=1/2,1 in Magnetic Fields
• Ground-State Phase Diagram for the Three-Dimensional Orthogonal-Dimer System : Condensed Matter: Electronic Properties, etc.
• Parity Effects in Nanoscale Metallic Grain Including a Magnetic Impurity
• Aharonov-Bohm Effect for Parallel and T-shaped Double Quantum Dots
• Variational Monte Carlo Analysis of Hubbard Model with Confining Potential : One-dimensional Fermionic Optical Lattice Systems(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Spin-polarized Transport through Double Quantum Dots(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Kondo Problem and Related One-dimensional Quantum Systems : Bethe Ansatz Solution and Boundary Conformal Field Theory(Kondo Effect-40 Years after the Discovery)
• Bosonization Approachi to the One-Dimensional Kondo Lattice Model at Half Filling:Reexamination
• Phase Diagram for Two-Dimensional Spin Systems with Ladder, Plaquette and Mixed-Spin Structures : Condensed Matter: Electronic Properties, etc.
• Critical Properties in Dynamical Charge Correlation Function for the One-Dimensional Mott Insulator
• One-dimensional S=1 Spin-Orbital Model with Uniaxial Single-Ion Anisotropy(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Competing Spin-Gap Phases in a Frustrated Quantum Spin System in Two Dimensions : Condensed Matter: Electronic Properties, etc.
• Effects of Conduction Electron Correlation on Heavy-Fermion Systems
• Effect of Umklapp Scattering on the Conductance in Quantum Wires
• Stability of FFLO States in Optical Lattices with Bilayer Structure
• Exact Critical Exponents for Pseudo-Particles in the Kondo Problem
• Low-Temperature Properties of the Fermionic Mixtures with Mass Imbalance in Optical Lattice
• 26pYB-2 A spin-selective Kondo-insulator Cooperation between Ferromagnetism and Kondo-effect
• Superfluid State in the Periodic Anderson Model with Attractive Interactions
• Crystal-Field Effects on Thermoelectric Power and Resistivity for the Ce-Kondo System
• Crystal-Field Effects on Low-Frequency Susceptibility for Ce-Kondo System
• Low-Frequency Susceptibility for Ce-Kondo System in Cubic Crystalline Field : II. LOW TEMPERATURE PROPERTIES OF SOLIDS : Heavy Electrons : Theory
• Heavy Quasi-Particles in the Two-Orbital Hubbard Model
• Nonadiabatic Dynamics of Ultracold Fermions in Optical Superlattices
• Effects of Disorder on Superfluidity in the Attractive Hubbard Model
• Polarized Superfluidity in the Imbalanced Attractive Hubbard Model
• Quantum Condensation in Electron–Hole Bilayers with Density Imbalance
• Trapped Ultracold Fermions in Double-Well Optical Lattices
• One-dimensional S=1 Spin-Orbital Model with Uniaxial Single-Ion Anisotropy(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Critical Properties of One-Dimensional Electron Systems with 1/γ^α-type Long-Range Interactions : Condensed Matter: Electronic Properties, etc.

もっと見る 閉じる

スポンサーリンク