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Spin-dependent resonant tunneling in CdTe/Cd1−xMnxTe nanostructures: effect of polaronic mass

Author

Listed:
  • L. Bruno Chandrasekar

    (Karpagam Academy of Higher Education)

  • A. Dinesh

    (K. Ramakrishnan College of Engineering (Autonomous), Affiliated to Anna University)

  • Lalitha Gnanasekaran

    (Universidad de Tarapacá)

  • Madhappan Santhamoorthy

    (Yeungnam University)

  • M. Karunakaran

    (Alagappa Government Arts College)

  • A. Manikandan

    (Karpagam Academy of Higher Education)

  • E. Priyadharshini

    (Velammal Institute of Technology)

  • P. Shunmuga Sundaram

    (Saveetha Medical College
    Saveetha Institute of Medical and Technical Sciences)

  • S. Kaleel Mohamed Ibrahim

    (St. Joseph’s College of Engineering)

Abstract

Effect of polaronic mass on the resonant tunneling of electrons in CdTe/Cd1−xMnxTe double-barrier heterostructure is investigated. The well-known transfer matrix method is employed to calculate the barrier transparency. One can obtain a high degree of spin-polarization at a high concentration of Mn in the barrier region. The barrier transparency peak becomes narrow as the concentration of Mn increases from 10 to 20%. The effect of polaronic mass shifts the transparency peak to the lower value on the energy scale. One can obtain a high degree of spin-polarization at a high concentration of Mn in the barrier region. The account of the polaronic mass shifts the resonance energy of spin-polarization to the lower value and it enhances the spin-polarization. The spin-down electrons spend more time in the heterostructure than the spin-up electrons. The dwell time changes about 1000 times as the concentration of the barrier changes. Graphical abstract Spin separation versus Mn concentration (a) without the account of polaronic mass and (b) with the account of polaronic mass

Suggested Citation

  • L. Bruno Chandrasekar & A. Dinesh & Lalitha Gnanasekaran & Madhappan Santhamoorthy & M. Karunakaran & A. Manikandan & E. Priyadharshini & P. Shunmuga Sundaram & S. Kaleel Mohamed Ibrahim, 2025. "Spin-dependent resonant tunneling in CdTe/Cd1−xMnxTe nanostructures: effect of polaronic mass," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 98(3), pages 1-7, March.
    • Handle: RePEc:spr:eurphb:v:98:y:2025:i:3:d:10.1140_epjb_s10051-025-00888-4
    DOI: 10.1140/epjb/s10051-025-00888-4
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