Electron tunneling and transport in <i>α</i>-<i>T</i><sub>3</sub> lattices under linearly polarized irradiation

ORAL

Abstract

We have considered electron tunneling through a square electrostatic potential barrier for Floquet states, i.e., pseudospin-1 Dirac electrons coupled to a dressing, off-resonant field which is linearly polarized. While for the dice lattice we can still observe an asymmetric Klein tunneling, i.e., perfect transmission for electrons colliding with the barrier that is different from the head-on case, the Klein paradox is completely suppressed for the α-T3 lattice in general with α ≠ 1. We have also calculated electron transmission for finite incidence angles and the tunneling conductance corresponding to these transmission amplitudes.

–

Presenters

  • Paula Fekete

    • US Military Academy
    • US Military Academy at West Point
    • West Point, US Military Academy

Authors

  • Paula Fekete

    • US Military Academy
    • US Military Academy at West Point
    • West Point, US Military Academy

  • Andrii Iurov

    • Medgar Evers College
    • Medgar Evers College of City University of New York
    • Medgar Evers college
    • Department of Physics and Computer Science, Medgar Evers College of City University of New York
    • Physics and Astronomy, Medgar Evers College, City University of New York
    • Medgar Evers College of the City University of New York
    • Department of Physics, Medgar Evers College of City University of New York

  • Godfrey Gumbs

    • Hunter college, CUNY
    • Hunter College of the City University of New York
    • Hunter college
    • Physics and Astronomy, Hunter college
    • Department of Physics & Astronomy, Hunter College-CUNY, New York
    • Physics and Astronomy, Hunter college,City University of New York
    • Department of Physics and Astronomy, Hunter College of the City University of New York
    • Physics and Astronomy, Hunter College of CUNY
    • Physics and Astronomy, Hunter College, City University of New York

  • Danhong Huang

    • Air Force Research Lab
    • Air Force Research Laboratory, Kirtland Air Force Base, Albuquerque, NM
    • Kirtland Air Force Research Lab
    • Space Vehicles Directorate, Air Force Research Lab - Kirtland
    • Air Force Research Laboratory
    • Air Force Research Laboratory, Kirtland Airforce Base, Albuquerque, NM