Coexistence of Singlet and Triplet Attractive Channels in the Pairing Interactions Mediated by Antiferromagnetic Fluctuations : Condensed Matter: Electronic Properties, etc.
スポンサーリンク
概要
- 論文の詳細を見る
We point out that pairing interactions mediated by antiferromagnetic fluctuations necessarily inculde both singlet channels and triplet channels as attractive interactions. By taking into account this feature, a phase diagram of quasi-low-dimensional type II superconductors in parallel magnetic fields is proposed in a system where antiferromagnetic fluctuations contribute to the pairing interactions. A singlet pairing is favored at zero field, while a triplet pairing occurs at high fields where the singlet pairing is suppressed by the Pauli paramagnetic pair-breaking effect. As a result, the critical field increases divergently at low temperatures. A possible relation to experimental phase diagrams of a quasi-one-dimensional organic superconductor is briefly discussed. We also discuss the possibility that a triplet superconductivity is observed even at zero field.
- 社団法人日本物理学会の論文
- 2000-07-15
著者
-
SHIMAHARA Hiroshi
Department of Quantum Matter Science, ADSM, Hiroshima University
-
Shimahara Hiroshi
Department Of Quantum Matter Science Adsm
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)