Charge kinks as Raman scatterers in quarter-filled ladders
arXiv:cond-mat/0105261 · doi:10.1103/PhysRevB.63.224305
Abstract
Charge kinks are considered as fundamental excitations in quarter-filled charge-ordered ladders. The strength of the coupling of the kinks to the three-dimensional lattice depends on their energy. The integrated intensity of Raman scattering by kink-antikink pairs is proportional to or where is the order parameter. The exponent is determined by the system parameters and by the strength of the electron-phonon coupling.
To be published in Phys. Rev.B (june 2001)
References in corpus (18)
- Surprises on the Way from 1D to 2D Quantum Magnets: the Novel Ladder Materials
- NaV_2O_5 as a quarter-filled ladder compound
- A new view of the electronic structure of the spin-Peierls compound alpha'-NaV2O5
- Charge ordering and spin- Peierls transition in alpha'-NaV2O5
- Charge ordering and opening of spin gap in NaV_2O_5
- Elementary Excitations in Dimerized and Frustrated Heisenberg Chains
- Coexistence of charge density wave and spin-Peierls orders in quarter-filled quasi-one dimensional correlated electron systems
- Magnon splitting induced by charge ordering in NaV_2O_5
- Frustration induced Raman scattering in CuGeO_3
- Unified Quantum Mechanical Picture for Confined Spinons in Dimerized and Frustrated Spin S=1/2 Chains
- Charge Order Driven spin-Peierls Transition in NaV2O5
- Spin gap behavior and charge ordering in α^{\prime}-NaV_2O_5 probed by light scattering
- Low temperature ellipsometry of NaV2O5
- Electron-phonon and spin-phonon coupling in NaVO: charge fluctuations effect
- X-ray Investigation of the Magneto-elastic Instability of alpha'-NaV2O5
- Raman scattering study of anomalous charge-, spin-, and lattice-dynamics in the charge-ordered phase of ()
- High frequency ESR investigation on dynamical charge disproportionation and spin gap excitation in NaV_2O_5
- Infrared and Raman spectra of LiV2O5 single crystals