Tailoring plasmons excitations in α − T3 armchair nanoribbons

ORAL

Abstract

We have investigated finite-width alpha-T3 nanoribbons with armchair type of edge termination and have numerically obtained their energy dispersion, electronic states, wavefunctions, dynamical polarization function, and plasmon excitations. The plasmon dispersions obtained are mainly determined by the energy bandgap which depends on the number of atomic rows across the nanoribbon. We have also investigated the Landau damping of such plasmons and their dependence on the nanoribbon geometry and resulting energy bandgap, as well as on the relative hopping parameter α of the α−T3 lattice.

*A.I. would like to acknowledge the funding received from TRADA-51-82 PSC-CUNY Award # 63061-00-51. D.H. was supported by the Air Force Office of Scientific Research (AFOSR). G.G. would like to acknowledge Grant No. FA9453-21-1-0046 from the Air Force Research Laboratory (AFRL).

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Presenters

  • Paula Fekete

    • US Military Academy West Point

Authors

  • Paula Fekete

    • US Military Academy West Point

  • Andrii Iurov

    • The City College of New York
    • Medgar Evers College
    • Medgar Evers College, CUNY
    • Medgar Evers college and Hunter college, CUNY

  • Andrii Iurov

    • The City College of New York
    • Medgar Evers College
    • Medgar Evers College, CUNY
    • Medgar Evers college and Hunter college, CUNY

  • Godfrey A Gumbs

    • Hunter College of CUNY
    • Hunter college, City University of New York
    • Hunter College
    • City College of New York

  • Danhong Huang

    • Air Force Research Lab - Kirtland

  • Farhana Anwar

    • Lawrence Berkeley National Laboratory

  • Dipendra Dahal

    • University of Houston, Texas
    • The Graduate Center, City University of New York

  • Nicholas Weekes

    • The City College of New York