Screening effect on the polaron by surface plasmons

ORAL

Abstract

Surface plasmons occur when the conduction electrons at a metal/dielectric interface resonantly interact with external electromagnetic fields. While surface plasmons in vicinity of a polaron in the dielectric material, a strong screening effect on polaron characteristics is introduced. In this work, we observed the reduction of polarons in multiferroic LuFe2O4, which is mainly contributed by surface plasmons.

*Research sponsored by the Laboratory Directed Research and Development Program of Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U. S. Department of Energy.

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Authors

  • Xiaoying Xu

    • Oak Ridge National Lab

  • Xiaoshan Xu

    • Oak Ridge National Lab

  • Katyayani Seal

    • Oak Ridge National Lab; The University of Tennessee

  • Hangwen Guo

    • Oak Ridge National Lab; The University of Tennessee

  • Jian Shen

    • Oak Ridge National Lab
    • The University of Tennessee, Knoxville \& Fudan University
    • University of Tennessee \& Fudan University
    • The University of Tennessee / Fudan University
    • Fudan University; The University of Tennessee