The Long-Range Coulomb Effects to the Phase Oscillatios of Incommensurate Spin Density Wave
スポンサーリンク
概要
- 論文の詳細を見る
We have investigated the long-range Coulomb effects to coupled modes ofthe phase oscillation of the incommensurate spin density wave and the chargedensity fluctuations at zero temperature for situations A and B where bandelectrons completely lose the itinerant character with appearance of the singleexcitation gap in A and they still retain this character in B. For A there exists theonly one coupled mode at zero momentum for finite frequencies region. Thismode has a pole at the plasma frequency just as the Bogoliubov-Anderson modehas in the superconductor. For B there is a possibility of a linear spectrum existingwith the velocity of order of the Fermi velocity under certain conditions in contrastwith A lacking in this linear spectrum. The longitudinal susceptibility is expressedin terms of the amplitude and phase oscillations of the spin density wave.
- 社団法人日本物理学会の論文
- 1985-10-15
著者
-
Kurihara Yasunari
Instituto De Fisica "gleb Wataghin" University Estadual De Compinas
-
Kurihara Yasunari
Institute De Fisica "gleb Wataghin" Universidade Estadual De Campinas
関連論文
- On a T-matrix Theory for Many-Particle System
- Itinerant Electron Theory of Strain Wave in Chromium
- Tunneling of the Dislocations in ^3He Crystals
- A Theory of Low Lying Magnetic Excitations in the Incommensurate Phases of Chromium
- The Long-Range Coulomb Effects to the Phase Oscillatios of Incommensurate Spin Density Wave
- Phason, Sound Wave and their Coupling in the Quasi Two Dimentional Charge Density Wave
- Mixed Collective Modes in the Coexisting State of the Charge (Spin) Density Wave and Superconductivety
- Renormalization Theory of the Peierls Transition in the One-Dimensional frohlich Hamiltonian
- Phonon Dynamics in Superconductors
- The Temperature Dependence of the Velocity of the Longitudinal Acoustic Mode of Chromium in the Spin Density Wave State
- Spin-Peierls Instabilities vs Antiferromagnetic Transition and Phonon Dynamics
- Sound Waves, Phason and Screening Effect in One Dimensional Charge Density Wave