Influence of layer separation and doping on plasmons of double-layer α-T<sub>3</sub> lattices

POSTER

Abstract

We have investigated the spectrum of alpha-T3 plasmons which arise when a pair of lattice sheets have a finite separation between them with a dielectric medium between them. The procedure we used is a calculation of the surface response function which is calculated by matching the electrostatic potential across an interface as well as relating the discontinuous electric field at each interface to its charge density on the conducting layer. Using the linear response theory, we introduce the polarization function. We determine the plasma excitations for various layer separations, dielectric media between and surrounding the layers, and doping concentrations.

Presenters

  • Dipendra Dahal

    • Physics, Graduate Center, City university of new york
    • The Graduate Center, City University of New York

Authors

  • Dipendra Dahal

    • Physics, Graduate Center, City university of new york
    • The Graduate Center, City University of New York

  • 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