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)].

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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