Electron temperature modulation at the 2D electron system in the GaAs/AlGaAs under microwave photoexcitation

POSTER

Abstract

The magnetotransport measurements have been performed on the 2D electron system at GaAs/AlGaAs heterojunctions to understand the influence of the microwave photoexcitation on the spin splitting of the Shubnikov-de Haas oscillations at low temperatures (<1 K). The purpose of the study is to examine the temperature modulation of the electrons under microwave photoexcitation by examining observable spin splitting- and variation thereof under photoexcitation- at high filling factors. In this study, a multicomponent Lifshitz-Kosevevich1 type function has been applied to describe the magnetotransport data, and relevant results will be presented here.
1. Hu, J. et al. Sci. Rep. 6, 18674; doi: 10.1038/srep18674 (2016).

*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.

Presenters

  • Tharanga Nanayakkara

    • Georgia State University

Authors

  • Tharanga Nanayakkara

    • Georgia State University
  • U. Kushan Wijewardena

    • Georgia State University
  • Annika Kriisa

    • Georgia State University
  • Sajith Withanage

    • Georgia State University
  • Ramesh Mani

    • Georgia State University
  • Christian Reichl

    • ETH Zurich
    • Laboratorium für Festkörperphysik, ETH Zürich
    • ETH Zürich
  • werner wegscheider

    • ETH Zurich
    • Laboratorium für Festkörperphysik, ETH Zürich
    • ETH Zürich