Photoinduced Dynamics of Charge Density Waves in Mott-Peierls Systems

ORAL

Abstract

Studying non-equilibrium dynamics can potentially enhance our understanding of the physics underlying competing orders in strongly correlated systems. To characterize charge-ordered systems in time-resolved pump-probe experiments, we examine the photoinduced dynamics of charge and spin density waves in one-dimensional Mott-Peierls systems, by exact diagonalization and Krylov time-evolution techniques. We observe anti-phase dynamics at the renormalized phonon frequency and a coupling-strength-dependent suppression/enhancement of CDW/SDW orders, reflecting the competing-order-driven phase transition. Our study offers an approach to analyze and classify competing or coexisting orders in strong correlated systems through non-equilibrium dynamics.

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Authors

  • Yao Wang

    • Stanford University
    • Stanford University/ Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory

  • Cheng-Chien Chen

    • Advanced Photon Source, Argonne National Laboratory
    • Argonne National Laboratory

  • Chunjing Jia

    • Stanford University
    • Stanford University/ Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • Stanford Institute for Materials and Energy Sciences, SLAC National Laboratory and Stanford University, Menlo Park, CA 94025, USA

  • Michel van Veenendaal

    • Advanced Photon Source, Argonne National Laboratory/Department of Physics, Northern Illinois University

  • Thomas Devereaux

    • Stanford Institute for Materials \& Energy Sciences
    • Stanford University, SLAC National Accelerator Laboratory
    • Stanford University/ Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SLAC National Lab and Stanford University
    • SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences

  • Brian Moritz

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