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Topological magnetoplasmon

Author

Listed:
  • Dafei Jin

    (Massachusetts Institute of Technology)

  • Ling Lu

    (Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics
    Massachusetts Institute of Technology)

  • Zhong Wang

    (Institute for Advanced Study, Tsinghua University
    Collaborative Innovation Center of Quantum Matter)

  • Chen Fang

    (Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics
    Massachusetts Institute of Technology)

  • John D. Joannopoulos

    (Massachusetts Institute of Technology)

  • Marin Soljačić

    (Massachusetts Institute of Technology)

  • Liang Fu

    (Massachusetts Institute of Technology)

  • Nicholas X. Fang

    (Massachusetts Institute of Technology)

Abstract

Classical wave fields are real-valued, ensuring the wave states at opposite frequencies and momenta to be inherently identical. Such a particle–hole symmetry can open up new possibilities for topological phenomena in classical systems. Here we show that the historically studied two-dimensional (2D) magnetoplasmon, which bears gapped bulk states and gapless one-way edge states near-zero frequency, is topologically analogous to the 2D topological p+ip superconductor with chiral Majorana edge states and zero modes. We further predict a new type of one-way edge magnetoplasmon at the interface of opposite magnetic domains, and demonstrate the existence of zero-frequency modes bounded at the peripheries of a hollow disk. These findings can be readily verified in experiment, and can greatly enrich the topological phases in bosonic and classical systems.

Suggested Citation

  • Dafei Jin & Ling Lu & Zhong Wang & Chen Fang & John D. Joannopoulos & Marin Soljačić & Liang Fu & Nicholas X. Fang, 2016. "Topological magnetoplasmon," Nature Communications, Nature, vol. 7(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13486
    DOI: 10.1038/ncomms13486
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    Cited by:

    1. Sang Hyun Park & Michael Sammon & Eugene Mele & Tony Low, 2022. "Plasmonic gain in current biased tilted Dirac nodes," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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