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