Magnetoplasmons and magnetoexcitons in doped double-layered $\alpha$-T$_3$ lattice in a strong magnetic field

POSTER

Abstract

We investigate the conditions for the occurrence of Bose-Einstein condensation and superfluidity of indirect magnetoexcitons for a pair of quasi-two-dimensional spatially separated $\alpha$-T$_3$ layers. The energy dispersion of collective excitations, the spectrum of sound velocity, and the effective magnetic mass of magnetoexcitons are obtained in the integer quantum-Hall regime for strong magnetic fields. The superfluid density and the temperature of the Kosterlitz-Thouless phase transition are probed as functions of the excitonic density, magnetic field and the interlayer separation.

Presenters

  • Godfrey Gumbs

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

Authors

  • Godfrey Gumbs

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

  • Dipendra Dahal

    • CUNY Graduate Center
    • Physics and Astronomy, Hunter College/CUNY
    • Graduate Center, CUNY

  • Andrii Iurov

    • Center for High Technology Materials, University of New Mexico
    • Physics, University of New Mexico
    • University of New Mexico
    • Center for High Technology Materials, University of New Mexico, Albuquerque, NM
    • Center for High Technology, University of New Mexico

  • Danhong Huang

    • Air Force Research Lab - Kirtland
    • Physics, University of New Mexico
    • Air Force Research Labs.
    • Kirtland Airforce Base, Air Force Research Laboratory, Albuquerque, NM
    • Advanced E/O Space Sensors Group, Air Force Research Laboratory
    • US Air Force Research Laboratory
    • Space Vehicles Directorate, Kirtland AFB, Air Force Research Laboratory