• Spin polarization of electrons in a magnetic impurity doped semiconductor quantum dot – The effect of electron–phonon interaction

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      https://www.ias.ac.in/article/fulltext/pram/086/03/0661-0667

    • Keywords

       

      Impurity-doped semiconductor quantum dot; impurity concentration; electron–phonon interaction; spin polarization.

    • Abstract

       

      A theoretical model is presented in this paper for degree of spin polarization in alight emitting diode (LED) whose epitaxial region contains quantum dots doped with magnetic impurity. The model is then used to investigate the effect of electron–phonon interaction on degree of spin polarization at different temperatures and magnetic fields. It is found that magnetic impurityincreases the degree of spin polarization irrespective of temperature, while the electron–phonon interaction decreases the degree of spin polarization. Results are found to be in better agreement with experiments.

    • Author Affiliations

       

      Misra Deepanjali1 Tripathy Sukanta Kumar1

      1. National Institute of Science and Technology, Palur Hills, Berhampur 761 008, India
    • Dates

       
  • Pramana – Journal of Physics | News

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