Charge kinks as Raman scatterers in quarter-filled ladders

Details Charge kinks as Raman scatterers in quarter-filled ladders Charge kinks as Raman scatterers in quarter-filled ladders

2001-05-14

arxiv.org/abs/cond-mat/0105261v1

Phys. Rev. B 63, 224305 (2001).

Physics

Condensed Matter

Strongly Correlated Electrons

To be published in Phys. Rev.B (june 2001)

Scientific paper

10.1103/PhysRevB.63.224305

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 $\phi ^{5}$ or $\phi ^{4},$ where $\phi $ is the order parameter. The exponent is determined by the system parameters and by the strength of the electron-phonon coupling.

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