电邮这篇文章 Zeeman Splitting of Excitons in GaAs/AlGaAs Quantum Wells in the Faraday Geometry
- 作者: Grigor'ev F.S.1, Chukeev M.A.2, Lovtsyus V.A.3, Efimov Y.P.2, Eliseev S.A.3
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隶属关系:
- St. Petersburg State University
- Resource Center “Nanophotonics,” St. Petersburg State University
- Spin Optics Laboratory, St. Petersburg State University
- 期: 卷 164, 编号 5 (2023)
- 页面: 761-769
- 栏目: Articles
- URL: https://transsyst.ru/0044-4510/article/view/653615
- DOI: https://doi.org/10.31857/S0044451023110068
- EDN: https://elibrary.ru/PMGEIT
- ID: 653615
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详细
The Zeeman splitting in the GaAs/AlGaAs heterostructure is investigated experimentally. Numerical analysis performed for the wavefunctions of exciton states, which takes into account the bands of heavy holes, light holes, and the band split by the spin–orbit interaction, is the quantitative agreement with experimental data both for an exciton with a heavy hole and for that with a light hole. It is shown that for explaining the experimental values of the Zeeman splitting in the quantum well under investigation, it is necessary to take into account both the Coulomb interaction and the contribution from the three bands in the valence band. The effect of screening of exciton states by a 2D gas of electrons with concentration n ≈ 109 cm–2 is described. Numerical calculations are performed for a large range of quantum well widths and aluminum concentrations in barriers; the chart of the dependence of the effective g factor on these parameters is plotted for magnetic field B = 5 T.
作者简介
F. Grigor'ev
St. Petersburg State University
Email: f.grigoriev@spbu.ru
198504, St. Petersburg, Russia
M. Chukeev
Resource Center “Nanophotonics,” St. Petersburg State University
Email: f.grigoriev@spbu.ru
198504, St. Petersburg, Russia
V. Lovtsyus
Spin Optics Laboratory, St. Petersburg State University
Email: f.grigoriev@spbu.ru
198504, St. Petersburg, Russia
Yu. Efimov
Resource Center “Nanophotonics,” St. Petersburg State University
Email: f.grigoriev@spbu.ru
198504, St. Petersburg, Russia
S. Eliseev
Spin Optics Laboratory, St. Petersburg State University
编辑信件的主要联系方式.
Email: f.grigoriev@spbu.ru
198504, St. Petersburg, Russia
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