Dynamics of metallic stripes in cuprates

J. Lorenzana; G. Seibold

doi:10.1103/physrevlett.90.066404

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Dynamics of metallic stripes in cuprates

J. Lorenzana·G. Seibold

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Abstract

We study the dynamics of metallic vertical stripes in cuprates within the three-band Hubbard model based on a recently developed time dependent Gutzwiller approximation. As doping increases the optical conductivity shows transfer of spectral weight from the charge transfer band towards i) an incoherent band centered at 1.3eV, {ii} a Drude peak, mainly due to motion along the stripe, {iii} a low energy collective mode which softens with doping and merges with ii} at optimum doping in good agreement with experiment. The softening is related to the quasidegeneracy between Cu centered and O centered mean-field stripe solutions close to optimal doping.

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J. Lorenzana, G. Seibold. 2002-10-03. Dynamics of metallic stripes in cuprates. https://doi.org/10.1103/physrevlett.90.066404

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