Spin-Triplet Superconductivity Mediated by Phonons in Quasi-One-Dimensional Systems(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 the spin-triplet superconductivity mediated by phonons in quasi-one-dimensional (Q1D) systems with open Fermi surfaces. We obtain the ground state phase diagrams. It is found that spin-triplet superconductivity occurs for weak screening and strong on-site Coulomb interaction, even in the absence of any additional nonphonon pairing interactions. We find that the nodeless spin-triplet state is more favorable than the spin-triplet state with line nodes, for the parameter values of the Q1D superconductors (TMTSF)_2X. We also find that Q1D open Fermi surface, which is the specific feature of this system, plays an essential role in the pairing symmetry. We discuss the compatibility of the present results with the experimental results in these compounds.
- 社団法人日本物理学会の論文
- 2004-11-15
著者
-
Shimahara Hiroshi
Department Of Quantum Matter Science Adsm
-
SUGINISHI Yuuichi
Department of Quantum Matter Science, ADSM, Hiroshima University
関連論文
- Fulde–Ferrell–Larkin–Ovchinnikov State in Heavy Fermion Superconductors
- Pseudogap due to Antiferromagnetic Fluctuations and the Phase Diagram of High-Temperature Oxide Superconductors : Condensed Matter: Electronic Properties etc.
- Magnetic Properties and Superconductivity of the Strong Coupling Hubbard Model
- Magnetic Properties of the Strong Coupling Hubbard Model
- Phase Transition without Spontaneous Symmetry Breaking between Hard and Soft Solid States(General)
- A Nonuniform State in a d-Wave Superconductor under Magnetic Field
- Order Parameter Mixing Effect in the Fulde-Ferrell State
- Fulde-Ferrell-Larkin-Ovchinnikov State and Field-Induced Superconductivity in an Organic Superconductor
- Enhancement of the Upper Critical Field and a Field-Induced Superconductivity in Antiferromagnetic Conductors
- Temperature Dependence of the Upper Critical Field of Anisotropic Singlet Superconductivity in a Square Lattice Tight-Binding Model in Parallel Magnetic Fields(Condensed Matter : Electronic Structure, Electrical, Mgagnetic and Optical Properties)
- Reduction of Pauli Paramagnetic Pair-breaking Effect in Antiferromagnetic Superconductors(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Coexistence of Singlet and Triplet Attractive Channels in the Pairing Interactions Mediated by Antiferromagnetic Fluctuations : Condensed Matter: Electronic Properties, etc.
- Magnon Exchange Mechanism of Superconductivity in a Generalized Kondo Lattice Model
- Enhancement of the Upper Critical Field Due to a Fermi-Surface Effect in Quasi-Two-Dimensional Superconductors in Parallel Magnetic Fields
- Structure of the Fulde-Ferrell-Larkin-Ovchinnikov State in Two-Dimensional Superconductors
- Isotope Effect in Superconductors with Coexisting Interactions of Phonon and Nonphonon Mechanisms
- Internal Transition of Superconducting State by Impurity Doping with a Jump of Isotope-effect Coefficient in Multiband Superconductors
- Internal Transition of Superconducting State by Impurity Doping with a Jump of Isotope-effect Coefficient in Multiband Superconductors
- Isotope Effect in Superconductors with Coexisting Interactions of Phonon and Nonphonon Mechanisms
- Spin-Triplet Superconductivity Mediated by Phonons in Quasi-One-Dimensional Systems(Condensed matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Spin-Triplet Superconductivity Mediated by Phonons in Quasi-One-Dimensional Systems(Condensed matter : Electronic Structure, Electrical, Magnetic and Optical Properties)