Berlin 2015 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 91: Superconductivity: (General) Theory 1
TT 91.4: Talk
Thursday, March 19, 2015, 12:15–12:30, H 2053
Resonant inelastic X-ray scattering of high-TC cuprates — •Yi Lu1 and Maurits W. Haverkort2 — 1Max Planck Institute for Solid State Research, Stuttgart — 2Max Planck Institute for Chemical Physics of Solids, Dresden
We present a systematic study of resonant inelastic X-ray scattering (RIXS) of high-Tc superconducting cuprates using a single-band model. We show how the RIXS spectra evolve in metals, correlated metals and Mott insulators in the framework of dynamical mean-field theory using a recently developed impurity solver. In light of recent experiments, the dependence of RIXS cross-section on doping and incident photon energy were specifically investigated. Our work clarifies the debated interpretation of RIXS as a measurement of magnetic collective mode or simply incoherent excitations of the particle-hole continuum.