Thermal plasmons and transport coefficients for pseudospin-1 dice lattices

POSTER

Abstract

Closed-form analytic expressions have been derived for the dynamic polarizability of the 2D pseudospin-1 dice lattices with a Berry phase for arbitrary frequency and wave vector. These calculations generalize previously reported results (J. D. Malcolm and E. J. Nicol, Phys. Rev. B { \bf 93}, 165433 (2016)). The plasmon dispersion relations at finite temperature for the dice lattice are compared with those of graphene to determine the role played by the presence of an additional flat subband. We also calculated the corresponding temeprature-depedent Boltzmann concuctivity in the relaxation-time approximation.

Presenters

  • Andrii Iurov

    • Center for High Technology Materials, University of New Mexico

Authors

  • Andrii Iurov

    • Center for High Technology Materials, University of New Mexico

  • Godfrey Gumbs

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

  • Danhong Huang

    • US Air Force Research Lab (AFRL/RVSWS)
    • Space Vehicles Directorate, Air Force Research Lab
    • Space Vehicles Directorate, US Air Force Research Lab
    • US Air Force Research Laboratory