Nonresonant inelastic light scattering in the Hubbard model
James K. Freericks, Thomas Devereaux, R. Bulla +1 more
Inelastic light scattering from electrons is a symmetry-selective probe of the charge dynamics within correlated materials. Many measurements have been made on correlated insulators, and recent exact solutions in large dimensions explain a number of anomalous features found in experiments. Here we focus on the correlated metal, as described by the Hubbard model away from half filling. We can determine the ${B}_{1\mathrm{g}}$ Raman response and the inelastic x-ray scattering along the Brillouin-zone diagonal exactly in the large dimensional limit. We find a number of interesting features in the light-scattering response, which should be able to be seen in correlated metals such as the heavy fermions.
arXiv:cond-mat/0211387•Physical review. B, Condensed matter•Apr 4, 2003•22 citations