Charge kinks as Raman scatterers in quarter-filled ladders

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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 $ϕ^{5}$ or $ϕ^{4},$ where $ϕ$ 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)

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Strongly Correlated Electrons, Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/99245

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0105261
 http://arxiv.org/abs/cond-mat/0105261
 Phys. Rev. B 63, 224305 (2001).
 doi:10.1103/PhysRevB.63.224305

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arXiv