Study of spin splitting of Shubnikov de Hass oscillations under microwave photoexcitation in the GaAs/AlGaAs 2DES

ORAL

Abstract

We perform magneto transport measurements on GaAs/AlGaAs 2D electron system to understand the influence of the microwave photoexcitation on the spin splitting of the Shubnikov-de Haas oscillations at liquid helium temperatures. The aim of the study is to determine the magnitude of the electron heating under microwave photo-excitation by examining observable spin splitting- and variation thereof under photoexcitation- at high filling factors. Thus, we apply a Lifshitz-Kosevevich1 type formula to describe the magneto transport data and report here the relevant results.
1. L. M. Lifshitz and A. M. Kosevich, J. Phys. Chem. Solids 4, 1 (1958) [Sov. Phys. JETP 4, 173 (1958)].

*This work was supported by the NSF under Grant No. ECCS-1710302, and by the Army Research Office under Grants No. W911NF-14-2-0076 and No. W911NF-15-1-0433.

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Presenters

  • Tharanga Nanayakkara

    • Physics and Astronomy, Georgia State University
    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State University

Authors

  • Tharanga Nanayakkara

    • Physics and Astronomy, Georgia State University
    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State University

  • Rasanga Samaraweera

    • Physics and Astronomy, Georgia State University
    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State University

  • Binuka Gunawardana

    • Physics and Astronomy, Georgia State University
    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State University

  • C. Rasadi Munasinghe

    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State University

  • U. Kushan Wijewardena

    • Physics and Astronomy, Georgia State University
    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State University

  • Sajith Withanage

    • Physics and Astronomy, Georgia State University
    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University
    • Georgia State University

  • Annika Kriisa

    • Physics and Astronomy, Georgia State University
    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Georgia State University
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University

  • Ramesh Mani

    • Physics and Astronomy, Georgia State University
    • Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA
    • Georgia State University
    • Department of Physics and Astronomy, Georgia State University
    • Physics & Astronomy, Georgia State University

  • Christian Reichl

    • Solid State Physics, ETH Zürich
    • Laboratorium für Festkörperphysik, ETH Zürich
    • ETH Zürich, CH-8093 Zürich, Switzerland, Laboratorium für Festkörperphysik
    • ETH-Zurich
    • Solid State Physics Laboratory, ETH Zurich
    • Laboratorium für Festkörperphysik, ETH-Zürich
    • Department of Physics, ETH Zurich
    • Department of Physics, ETH Zurich, Switzerland
    • ETH Zurich

  • Werner Wegscheider

    • Solid State Physics, ETH Zürich
    • Laboratorium für Festkörperphysik, ETH Zürich
    • ETH Zürich, CH-8093 Zürich, Switzerland, Laboratorium für Festkörperphysik
    • ETH-Zurich
    • Solid State Physics Laboratory, ETH Zurich
    • Laboratorium für Festkörperphysik, ETH-Zürich
    • Department of Physics, ETH Zurich
    • Department of Physics, ETH Zurich, Switzerland
    • ETH Zurich