• On the symmetry of phosphorous doped ZnSe

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/025/04/0329-0334

    • Keywords

       

      ZnSe; localized vibrational modes; $T_d$ and $C_{3V}$ symmetries; Jahn Teller distortion; Green’s function; molecular model.

    • Abstract

       

      The site symmetry of P doped ZnSe is analysed in detail here, as the recent experiments suggest two possible symmetries $T_d$ and $C_{3V}$. The reduction to $C_{3V}$ is attributed to the presence of natural impurity, Ga. Our calculations based on molecular model and Green’s functions suggest that the symmetry $C_{3V}$ is possible with ZnSe : P when Jahn Teller distortion of about ∼ 0.2 Å (towards one of Zn atom) is assumed. This has been supported by other experiments.

    • Author Affiliations

       

      N Sankar1 K Ramachandran2

      1. Department of Physics, Yadava College, Madurai 625 014, India
      2. Department of Theoretical Physics, Madurai Kamaraj University, Maduri 625 021, India
    • Dates

       

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