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The Effects of Pseudomagnetic Fields on Plasmon–Phonon Hybridization in Supported Graphene Probed by a Moving Charged Particle

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Abstract

We analyze the effects of the strain-induced pseudomagnetic field on the subthreshold mechanism of hybridization taking place between the Dirac plasmon in graphene and the surface optical phonon modes in a nearby substrate. It is shown that the pseudomagnetic field exerts quite strong influence on the oscillatory pattern in the total potential in the plane of graphene, as well as on the stopping and the image forces on a charge, which moves parallel to the graphene at a speed below the Fermi velocity, specially for small graphene–substrate gap sizes. One may conclude that the subthreshold mechanism of the plasmon–phonon hybridization can be controlled by varying the pseudomagnetic field strength and the doping density in graphene.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11705017, 11675036, 11775042 and 11805107) and Fundamental Research Funds for the Central Universities (Grant Nos. DUT17LK51 and DUT18TD06). Z.L.M. acknowledges support from the Natural Sciences and Engineering Research Council of Canada (Grant No. 2016-03689). I.R. acknowledges support from the Ministry of Education, Science and Technological Development of the Republic of Serbia. C.Z.L. acknowledges support from the Inner Mongolia Autonomous Region Talent Development Fund (Grant No. 2016-149).

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Authors and Affiliations

  1. Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian, 116024, China

    Xiang-Jia Bai, Ying-Ying Zhang & Yuan-Hong Song

  2. Department of Applied Mathematics, University of Waterloo, Waterloo, ON, N2L 3G1, Canada

    Zoran L. Mišković

  3. Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada

    Zoran L. Mišković

  4. Vinca Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, P.O. Box 522, 11001, Serbia

    Ivan Radović

  5. College of Physics and Electronic Information, Inner Mongolia University for the Nationalities, Tongliao, 028043, China

    Chun-Zhi Li

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  1. Xiang-Jia Bai
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  2. Ying-Ying Zhang
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  3. Zoran L. Mišković
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  4. Ivan Radović
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  5. Chun-Zhi Li
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  6. Yuan-Hong Song
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Correspondence to Ying-Ying Zhang.

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Bai, XJ., Zhang, YY., Mišković, Z.L. et al. The Effects of Pseudomagnetic Fields on Plasmon–Phonon Hybridization in Supported Graphene Probed by a Moving Charged Particle. Plasmonics 16, 1089–1098 (2021). https://doi.org/10.1007/s11468-020-01369-3

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  • DOI: https://doi.org/10.1007/s11468-020-01369-3

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