Real Space Visualization of Mott Gap and Magnon Excitations

ORAL

Abstract

Real-space and time information plays a significant role in understanding inhomogeneous physical and chemical processes at the nano-scale. Experimentally, inelastic light scattering promises to become an important tool for characterizing the spatio-temporal properties of complex systems. To demonstrate the power of this technique, we perform a theoretical study of real-space charge and spin density response functions in the Hubbard model to track time-dependent Mott gap and magnon excitations. Carrier doping is found to affect the evolution of the charge and spin response with distinct timescales and real-space patterns appearing for n- or p-type materials.

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Authors

  • Yao Wang

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

  • Chunjing Jia

    Stanford University/SLAC, 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

  • 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