Magnetic and Chiral Excitations in Resonant Raman Scattering

ORAL

Abstract

For the strongly correlated materials such as the cuprate parent compounds, the two-magnon excitations can be measured by the Raman scattering imposing the B1g symmetry, while chiral excitations can be probed using circularly polarized light. We study the resonance enhancement of these excitations and their relationship to the optical conductivity based on cluster exact diagonalization studies of the single-band as well as multi-orbital Hubbard models. Our theoretical studies help understand Raman experiments for the half-filled cuprates as well as the lightly doped (electron and hole doped) cuprates, and the relationships to other experiments on the same materials.

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Authors

  • Tom Devereaux

    SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, SLAC \& Stanford, Stanford Institute for Materials and Energy Sciences, Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Stanford University and SLAC

  • Chunjing Jia

    Stanford University/SLAC, Department of Applied Physics, Stanford University, SLAC \& Stanford

  • Yao Wang

    Department of Applied Physics, Stanford University, SLAC \& Stanford

  • Brian Moritz

    SLAC National Accelerator Laboratory, SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, SLAC \& Stanford

  • Rudi Hackl

    Walther Meissner Institute