Tunable Klein tunneling using Spin orbit coupling in a 2D EG

ORAL

Abstract

Klein tunneling of particles across an electrostatic potential barrier has long been the phenomenon which has captivated both experimentalists and theorists for many years.We discuss the effect of the spin-orbit interaction on the band structure, and wave functions in quasi-two-dimensional electron systems. We then use these states in the matching conditions across a sharp but atomically smooth electrostatic potential barrier to calculate the transmission probability. We employ this result for the tunneling probability in the Landauer-Buttiker formula to calculate the ballistic conductivity. Additionally, we investigate the conditions under which there is Klein tunneling at an angle other than when there is head-on impact.

*[ G.G. would like to acknowledge the support from the Air Force Research Laboratory (AFRL) through Grant No. FA9453-21-1-0046.]

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Presenters

  • Travis Rogowski

    • Hunter College

Authors

  • Travis Rogowski

    • Hunter College

  • Godfrey Anthony Gumbs

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

  • Andrii Iurov

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

  • Danhong Huang

    • US Air Force Research Lab (AFRL/RVSU)
    • Air force research lab
    • Space Vehicles Directorate, US Air Force Research Laboratory
    • Air Force Research Lab - Kirtland
    • Center for High Technology Materials, University of New Mexico
    • US Air Force Research Laboratory