کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1818278 | 1525731 | 2012 | 14 صفحه PDF | دانلود رایگان |
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.
► We analyze stripe ground states for cuprate superconductors.
► We derive a one-band Hubbard model parameter set for high-Tc superconductors.
► Response functions are compared with experimental data from cuprate superconductors.
► We analyze the dichotomy between low energy protected and high energy states.
Journal: Physica C: Superconductivity - Volume 481, 1 November 2012, Pages 132–145