Optically detected magnetic resonance of photoexcited electrons in (In,Al)As/AlAs quantum dots with indirect band gap and type-I band alignment

V. Yu. Ivanov, T. S. Shamirzaev, D. R. Yakovlev, A. K. Gutakovskii, Ł. Owczarczyk, and M. Bayer
Phys. Rev. B 97, 245306 – Published 13 June 2018

Abstract

Optically detected magnetic resonance (ODMR) is measured for photoexcited electrons in (In,Al)As/AlAs quantum dots having an indirect band gap and a type-I band alignment. A sharp ODMR resonance corresponding to a g factor of 1.97±0.02 is identified, associated with X-valley electrons. Its variation with optical transition energy allows us to distinguish between the spectral regions of direct and indirect QDs, which is in good agreement with the results on exciton recombination dynamics.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 3 May 2018

DOI:https://doi.org/10.1103/PhysRevB.97.245306

©2018 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

V. Yu. Ivanov1, T. S. Shamirzaev2,4, D. R. Yakovlev3,5, A. K. Gutakovskii2, Ł. Owczarczyk1, and M. Bayer3,5

  • 1Institute of Physics, Polish Academy of Sciences, PL-02-668 Warsaw, Poland
  • 2Rzhanov Institute of Semiconductor Physics, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
  • 3Experimentelle Physik 2, Technische Universität Dortmund, 44221 Dortmund, Germany
  • 4Ural Federal University, 620002 Yekaterinburg, Russia
  • 5Ioffe Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 97, Iss. 24 — 15 June 2018

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×