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Non-Stationary Spin-polarized Currents Tuning in Correlated Quantum Dot

  • V. N. Mantsevich
  • N. S. Maslova
  • P. I. Arseyev
Article
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Abstract

We analyzed the influence of applied bias changing and external magnetic field switching on the nonstationary spin-polarized currents behavior in the correlated single-level quantum dot coupled to the nonmagnetic leads. It was demonstrated that spin polarization and direction of the non-stationary currents could be changed to the opposite ones by applied bias voltage. The degree of the currents spin polarization changes the sign following the applied bias polarity. The possibility of spin-polarized train pulses generation with the opposite degree of polarization was revealed. Moreover, the presence of external magnetic field allows to consider correlated single-level quantum dot as an effective non-stationary spin filter.

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • V. N. Mantsevich
    • 1
  • N. S. Maslova
    • 2
  • P. I. Arseyev
    • 3
    • 4
  1. 1.Chair of Semiconductors and Quantum Center, Faculty of PhysicsMoscow State UniversityMoscowRussia
  2. 2.Chair of Quantum Electronics and Quantum Center, Faculty of PhysicsMoscow State UniversityMoscowRussia
  3. 3.P.N. Lebedev Physical institute of Russian Academy of SciencesMoscowRussia
  4. 4.Russia National Research University Higher School of EconomicsMoscowRussia

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