Simultaneous extraction of Rashba and Dresselhaus spin-orbit coefficients in GaAs/AlGaAs (110) two-dimensional electron gas

Daisuke Iizasa, Shu Kitamura, Dai Sato, Satoshi Iba, Yuzo Ohno, Shutaro Karube, Junsaku Nitta, Makoto Kohda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigate Rashba and Dresselhaus spin-orbit coefficients in (110)-grown GaAs/AlGaAs two-dimensional electron gas (2DEG) by employing time-resolved Kerr rotation microscopy. In III-V semiconductor 2DEG grown on (110) crystal orientation, while Dresselhaus spin-orbit field is perpendicular to the 2DEG plane, which maintains spin polarization, Rashba spin-orbit field randomizes spin polarization due to D'yakonov-Perel' spin relaxation mechanism. Therefore, it is important to evaluate both spin-orbit fields quantitatively. Here, we propose and examine the method for simultaneous extraction of Rashba and Dresselhaus fields in GaA/AlGaAs (110) 2DEG by employing spin diffusion.

Original languageEnglish
Title of host publication2019 Compound Semiconductor Week, CSW 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728100807
DOIs
Publication statusPublished - 2019 May
Event2019 Compound Semiconductor Week, CSW 2019 - Nara, Japan
Duration: 2019 May 192019 May 23

Publication series

Name2019 Compound Semiconductor Week, CSW 2019 - Proceedings

Conference

Conference2019 Compound Semiconductor Week, CSW 2019
CountryJapan
CityNara
Period19/5/1919/5/23

Keywords

  • spin-orbit interaction
  • time-resolved Kerr rotation microscopy
  • two-dimensional electron gas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Iizasa, D., Kitamura, S., Sato, D., Iba, S., Ohno, Y., Karube, S., Nitta, J., & Kohda, M. (2019). Simultaneous extraction of Rashba and Dresselhaus spin-orbit coefficients in GaAs/AlGaAs (110) two-dimensional electron gas. In 2019 Compound Semiconductor Week, CSW 2019 - Proceedings [8819207] (2019 Compound Semiconductor Week, CSW 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICIPRM.2019.8819207