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arXiv · 1202.1615

Stripes in cuprate superconductors: Excitations and dynamic dichotomy

G. Seibold·M. Grilli·J. Lorenzana
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Abstract

We present a short account of the present experimental situation of stripes in cuprates followed by a review of our present understanding of their ground state and excited state properties. Collective modes, the dynamical structure factor, and the optical conductivity of stripes are computed using the time-dependent Gutzwiller approximation applied to realistic one band and three band Hubbard models, and are found to be in excellent agreement with experiment. On the other hand, experiments like angle-resolved photoemission and scanning tunneling microscopy show the coexistence of stripes at high energies with Fermi liquid quasiparticles at low energies. We show that a phenomenological model going beyond mean-field can reconcile this dynamic dichotomy.

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G. Seibold, M. Grilli, J. Lorenzana. 2012-02-08. Stripes in cuprate superconductors: Excitations and dynamic dichotomy. https://doi.org/10.1016/j.physc.2012.03.072

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