Transport and reflection from the microwave and mm-wave photo-excited high mobility GaAs/AlGaAs 2D electron system

ORAL

Abstract

The microwave and mm-wave photoexcited GaAs/AlGaAs 2DES exhibits phenomena such as the radiation-induced zero resistance states and associated magnetoresistance oscillations in the large filling factor, low magnetic field limit, which depends upon ω/ωc where ω=2πf, and ωc is the cyclotron frequency. In this same regime, magnetoplasmon resonances have been observed and reported which represent hybridization between plasmons and cyclotron resonance. Here, we examine and compare the transport response with the microwave reflection response over the 30GHz to 330 GHz band to separate out the magnetoplasmon and bare cyclotron resonance response in the experiment. The results are compared with observations reported in the literature.

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Presenters

  • Annika Kriisa

    Physics & Astronomy , Georgia State University, Physics & Astronomy, Georgia State University, Georgia State Univ, Physics and Astronomy , Georgia State University, Department of Physics, Georgia State University, Physics and Astronomy, Georgia State University, 25 Park Place, #605, Georgia State University, Dept. of Physics and Astronomy, Georgia State Univ

Authors

  • Annika Kriisa

    Physics & Astronomy , Georgia State University, Physics & Astronomy, Georgia State University, Georgia State Univ, Physics and Astronomy , Georgia State University, Department of Physics, Georgia State University, Physics and Astronomy, Georgia State University, 25 Park Place, #605, Georgia State University, Dept. of Physics and Astronomy, Georgia State Univ

  • R.L. Samaraweera

    Physics and Astronomy , Georgia State University, Physics and Astronomy, Georgia State University, 25 Park Place, #605, Georgia State University, Dept. of Physics and Astronomy, Georgia State Univ

  • M.S. Heimbeck

    Army Aviation & Missile RD&E Center, Redstone Arsenal

  • Henry Everitt

    Dept. of Physics, Duke University

  • Werner Wegscheider

    ETH - Zurich, Solid State Physics Laboratory, ETH Zurich, ETH Zurich, Physics, ETH Zurich, Department of Physics, ETH Zurich, Laboratory for Solid State Physics, ETH Zürich, Laboratorium fur Festkrperphysik, ETH-Zurich, Laboratorium fur Festkorperphysik, , ETH-Zurich, ETH Zürich, Laboratorium für Festkörperphysik, ETH Zürich, Laboratorium fur Festkorperphysik, ETH-Zurich

  • Ramesh Mani

    Physics & Astronomy , Georgia State University, Physics & Astronomy, Georgia State University, Georgia State Univ, Physics and Astronomy , Georgia State University, Department of Physics, Georgia State University, Physics and Astronomy, Georgia State University, 25 Park Place, #605, Georgia State University, Dept. of Physics and Astronomy, Georgia State Univ, Georgia State University