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Spin-resolved transport properties in molybdenum disulfide superlattice

  • Farhad Tavakoli
  • Edris FaizabadiEmail author
  • Seyed Mohammad Elahi
  • Mohammadreza Hantehzadeh
Regular Article
  • 8 Downloads

Abstract

The effects of the perpendicular magnetic field on the multi-barriers system of 5-barriers to 100-barriers are studied. Considering the low-energy Hamiltonian of the system with spin-orbit coupling we modulate the external magnetic field as the Zeeman energy on the orbital magnetic moment. The transport of an incident electron passing through the superlattice created by the top-gated monolayer MoS2 based on the transfer matrix method is investigated and the spin-up and the spin-down transmissions and the spin-polarization for 5-barriers to 100-barriers are obtained. Comparing the results show that in the case of 30-barriers, we have both reliable transmissions for the system and a 100% spin-polarization so that the spin-flip can occur and gives us a desired spintronic device. We also sketched the variations of the transmissions and spin-polarization versus the relative barrier-widths over the well-widths, (D/W), which show the optimum value is 1 by 2, respectively. Finally, we calculate the spin-up and spin-down conductance and total conductivity of the system which shows the so-called resonant tunneling peaks and amplifying the internal spin-orbit coupling with the external magnetic field as the Zeeman energy.

Graphical abstract

Keywords

Mesoscopic and Nanoscale Systems 

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Copyright information

© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Farhad Tavakoli
    • 1
  • Edris Faizabadi
    • 2
    Email author
  • Seyed Mohammad Elahi
    • 1
  • Mohammadreza Hantehzadeh
    • 1
  1. 1.Department of PhysicsSciences & Research Branch, Islamic Azad UniversityTehranIran
  2. 2.School of Physics, Iran University of Science & TechnologyTehranIran

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