• Plasmon-magnon interaction in magnetic semiconductors

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      https://www.ias.ac.in/article/fulltext/pram/001/01/0031-0036

    • Keywords

       

      Spin wave; plasmon; semiconductor

    • Abstract

       

      In appreciably doped semiconductors (e.g. EuO, CdCr2S4, etc.) plasmon and magnon energies are comparable. Therefore, there will be resonant interaction between these modes of excitations. On the basis of a new microscopic theory formulated for plasmon-magnon interaction, the effect of this interaction on the energies and lifetimes of plasmons and magnons has been calculated using the double-time Green’s function. The energy shifts are very small and the lifetimes of plasmons,τp, and magnons,τm, are of the order of 10−2 and 10−3 sec respectively.

    • Author Affiliations

       

      G Baskaran1 K P Sinha1

      1. Department of Physics, Indian Institute of Science, Bangalore - 560012
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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