Spin dynamics of hot excitons in diluted magnetic semiconductors with spin-orbit interaction

F. Ungar, P. I. Tamborenea, and V. M. Axt
Phys. Rev. B 100, 045306 – Published 16 July 2019; Erratum Phys. Rev. B 100, 089901 (2019)

Abstract

We explore the impact of a Rashba-type spin-orbit interaction in the conduction band on the spin dynamics of hot excitons in diluted magnetic semiconductor quantum wells. In materials with strong spin-orbit coupling, we identify parameter regimes where spin-orbit effects greatly accelerate the spin decay and even change the dynamics qualitatively in the form of damped oscillations. Furthermore, we show that the application of a small external magnetic field can be used to either mitigate the influence of spin-orbit coupling or entirely remove its effects for fields above a material-dependent threshold.

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  • Received 21 May 2019
  • Revised 1 July 2019

DOI:https://doi.org/10.1103/PhysRevB.100.045306

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Erratum

Authors & Affiliations

F. Ungar1, P. I. Tamborenea2, and V. M. Axt1

  • 1Theoretische Physik III, Universität Bayreuth, 95440 Bayreuth, Germany
  • 2Departamento de Física and IFIBA, FCEN, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, C1428EHA Buenos Aires, Argentina

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Vol. 100, Iss. 4 — 15 July 2019

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