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)

スポンサーリンク

概要

• 論文の詳細を見る

• The d-vector in possibile spin triplet superconductor Na_xCoO_2・yH_2O is microscopically investigated on the basis of the multi-orbital Hubbard model including the atomic spin-orbit coupling. As a result of the perturbation theory, we obtain the stable spin triplet superconductivity where the p-wave and f-wave states can be stabilized. If we neglect the spin-orbit coupling, superconducting state has 6-fold (3-fold) degeneracy in the p-wave (f-wave) state. This degeneracy is lifted by the spin-orbit coupling. We determine the d-vector within the linearlized Dyson-Gorkov equation. It is shown that the d-vector is always along the plane when the pairing symmetry is p-wave, while it depends on the parameters in case of the f-wave state. The lifting of degeneracy is significant in the p-wave state while it is very small in the f-wave state. This is because the first order term with respect to the spin-orbit coupling is effective in the former case, while it is ineffective in the latter case. The consistency of these results with NMR and μSR measurements are discussed.

• 社団法人日本物理学会の論文
• 2005-09-15

著者

• OGATA Masao

  Department of Physics, University of Tokyo

• YANASE Youichi

  Department of Physics, University of Tokyo

• Yanase Y

  Department Of Physics University Of Tokyo

• Yanase Youichi

  Department Of Physics Kyoto University:(present)department Of Physics University Of Tokyo

• Yanase Youichi

  Department Of Physics Kyoto University

• MOCHIZUKI Masahito

  Department of Physics, University of Tokyo

• Ogata Masao

  Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo

• Mochizuki M

  Department Of Physics University Of Tokyo

• Mochizuki Masahito

  Department Of Manufacturing Science Graduate School Of Engineering Osaka University

• Ogata Masao

  Department Of Basic Science Graduate School Of Arts And Science University Of Tokyo

• Mochizuki Masahito

  Department of Applied Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan

関連論文

• 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)
• Comparison of Five Evaluation Methods of Residual Stress in a Welded Pipe Joint
• 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)
• Possibility of Gapless Spin Liquid State by One-Dimensionalization(Condensed matter: electronic structure and 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)
• Mean-Field Study of Charge Order with Long Periodicity in θ-(BEDT-TTF)_2X(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Ferromagnetic Ising Spin Chains Emerging from the Spin Ice under Magnetic Field
• Ferromagnetism on the Frustrated Lattices
• Superconducting States in Frustrating t-J Model : A Model Connecting High-T_c Cuprates, Organic Conductors and Na_xCoO_2
• Microscopic Identification of the D-vector in Triplet Superconductor Sr_2RuO_4
• Superconductivity and Antiferromagnetism in an Extended Gutzwiller Approximation for t-J Model : Effect of Double-Occupancy Exclusion
• Coexistence of Charge Order and Spin-Peierls Lattice Distortion in One-Dimensional Organic Conductors
• Exact Result of Ground-State Entropy for Ising Pyrochlore Magnets under a Magnetic Field along [111] Axis
• Magnetic Conversion Induced by Non-Magnetic Impurities in a Molecular Spin Ladder System, p-EPYNN.[Ni(dmit)_2]
• 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
• A New Mean-Field Superconducting Phase in Two-Dimensional t-J Model near Half-Filling
• CoO_2-Layer-Thickness Dependence of Magnetic Properties and Possible Two Different Superconducting States in Na_xCoO_2・yH_2O(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Quantized Conductance of One-Dimensional Doped Mott Insulator
• 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
• Effects of Charge Ordering on the Spin Degrees of Freedom in One-Dimensional Extended Hubbard Model(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• 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
• Superconductivity and Magnetism in Non-centrosymmetric System : Application to CePt_3Si(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Charge-Fluctuation-Induced Superconducting State in Two-Dimensional Quarter-Filled Electron Systems (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• ICONE11-36139 COUPLING PHENOMENA OF TEMPERATURE, MICROSTRUCTURE, AND STRESS-STRAIN FIELDS DURING WELD PROCESS
• Kinetic Energy, Condensation Energy, Optical Sum Rule and Pairing Mechanism in High-T_c Cuprates(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Non-centrosymmetric Superconductivity and Antiferromagnetic Order : Microscopic Discussion of CePt_3Si(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Localization and Superconductivity in Doped Semiconductors(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• FFLO Superconductivity near the Antiferromagnetic Quantum Critical Point(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Theory of Pseudogap Phenomena in High-Т_c Cuprates Based on the Strong Coupling Superconductivity
• Theory on Superconducting Transition from Pseudogap State : Condensed Matter: Electronic Properties, etc.
• Theory on Pseudogap State and Superconducting State in Strong Coupling Superconductors : Condensed Matter: Electronic Properties, etc.
• Theory of Transport Phenomena in Higy-T_c Cuprates
• Effect of Magnetic field on the Pseudogap Phenomena in High-Tc Cuprates : Condensed Matter: Electronic Properties, etc.
• Pseudogap Phenomena and Superconducting Fluctuations in Hubbard Model for High-T_c Cuprates : Condensed Matter: Electronic Properties, etc.
• 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
• Magnetic Properties in Non-centrosymmetric Superconductors with and without Antiferromagnetic Order(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Superconductivity and Antiferromagnetism in an Extended Gutzwiller Approximation for t-J Model : Effect of Double-Occupancy Exclusion
• Theory of Electric Transport in the Pseudogap State of High-T_c Cuprates
• Microscopic Identification of the D-vector in Triplet Superconductor Sr_2RuO_4
• Pseudogap and Superconducting Fluctuation in High-T_c Cuprates : Theory beyond 1-Loop Approximation (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Effect of Hund's Rule Coupling on the Kondo Effect
• ICONE11-36140 EVALUATION OF DUCTILE-TO-BRITTLE TRANSITION AND CRACK INITIATION IN WELDED JOINTS BY NUMERICAL SIMULATION
• Prediction of Ductile-to-Brittle Transition in Welded Joints with Strength Heterogeneity Subjected to Dynamic Loading(Brittle Fracture)
• ICONE11-36141 RESIDUAL STRESS BY REPAIR WELDS
• G-type Antiferromagnetism and Orbital Ordering due to the Crystal Field from the Rare-Earth Ions Induced by the GdFeO_3-type Distortion in RTiO_3 Where R = La, Pr, Nd and Sm(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Propert
• 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
• Roles of Bond Alternation in Magnetic Phase Diagram of $R$MnO3
• 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
• Locally Non-centrosymmetric Superconductivity in Multilayer Systems
• 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
• Random Spin–Orbit Coupling in Spin Triplet Superconductors: Stacking Faults in Sr2RuO4 and CePt3Si
• Interplay of Spin–Orbit Interaction and Electron Correlation on the Van Vleck Susceptibility in Transition Metal Compounds
• 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
• Antiferromagnetic Order and $\pi$-Triplet Pairing in the Fulde–Ferrell–Larkin–Ovchinnikov State
• Complex-Stripe Phases Induced by Staggered Rashba Spin--Orbit Coupling
• Superconducting Fluctuation and Pseudogap in Disordered Short Coherence Length Superconductor(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

もっと見る 閉じる

スポンサーリンク