Finite-temperature plasmons and damping for α-T<sub>3</sub> materials

POSTER

Abstract

We have numerically calculated the dynamical polarization function, the plasmon dispersion relation and their lifetimes due to Landau damping for various types of the recently discovered α-T3 lattices at finite temperature. We do so by choosing the hopping parameter 0 < α < 1. Both intrinsic and extrinsic cases with zero or finite Fermi energy and T = 0 have been addressed. We obtained analytic results for the plasmon dispersion relation in the long wavelength limit q → 0 for a dice lattice with α = 1.

*A.I. would like to acknowledge the funding provided by TRADA-51-82 PSC-CUNY Award # 63061-00–51. G.G. appreciates financial support from the Air Force Research Laboratory (AFRL) through grant FA9453-18-1-0100 and award FA2386-18-1-0120. D.H. thanks the supports from the Laboratory University Collaboration Initiative (LUCI) program and from the Air Force Office of Scientific Research (AFOSR).

Presenters

  • 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

Authors

  • 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

  • Liubov Zhemchuzhna

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

  • Paula Fekete

    • US Military Academy at West Point
    • Department of Physics and Nuclear Engineering, US Military Academy at West Point

  • 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

  • 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